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BOTANICAL SERIES

FIELD MUSEUM OF NATURAL HISTORY

FOUNDED BY MARSHALL FIELD, 1893

VOLUME XVII NUMBER 3

STUDIES OF AMERICAN PLANTS— VIII

BY

PAUL C. STANDLEY

CURATOR OP THE HERBARIUM, DEPARTMENT OF BOTANY

B. E. DAHLGREN

CHIEF CURATOR, DEPARTMENT OF BOTANY

THE LIBRARY OF THE

DEC 14 1937

UNIVERSITY OF ILLINOIS

PUBLICATION 395

CHICAGO, U.S.A.

DECEMBER 10, 1937

brary

BOTANICAL SERIES

FIELD MUSEUM OF NATURAL HISTORY

FOUNDED BY MARSHALL FIELD, 1893

VOLUME XVII

NUMBER 3

STUDIES OF AMERICAN PLANTS— VIII

BY

PAUL C. STANDLEY

CURATOR OF THE HERBARIUM, DEPARTMENT OF BOTANY

B. E. DAHLGREN

CHIEF CURATOR, DEPARTMENT OF BOTANY

THE LJBflWV QF THE

DEC 14 1937

WWERSJTY Of

PUBLICATION 395

CHICAGO, U.S.A.

DECEMBER 10, 1937

PRINTED IN THE UNITED STATES OF AMERICA

BY FIELD MUSEUM PRESS

560,5

STUDIES OF AMERICAN PLANTS— VIII

PAUL C. STANDLEY

Rosaceae are most numerous among the plants described as new

v. on the following pages. Nearly all of them are from the Amazonian

N collections made by Mr. B. A. Krukoff, whose whole series of this

°° economically important family was forwarded recently to the writer

' for study by the New York Botanical Garden.

Conspicuous among the Rubiaceae are several new species of

-^Brazil, discovered during examination of the rich collections of the

Museu Goeldi of Para, sent on loan during the summer of 1937 to

Field Museum. These collections, obtained chiefly by Ducke and

Huber, illustrate many of the rarer Rubiaceae of Amazonian Brazil,

and notes regarding some such species appear upon the following

pages.

The other new species described here have been detected mostly

- in collections from diverse sources, forwarded for determination.

There are recorded a number of additions to the ligneous flora of

southern Mexico, based upon the collection obtained in early 1937

for Field Museum on the Isthmus of Tehuantepec by Mr. Llewelyn

Williams.

COMMELINACEAE

Tradescantia chihuahuensis Standl., sp. nov. — Herba ut

videtur erecta vel adscendens gracilis ramosa, caule ubique pilis

* longis laxis sordidis patentibus vel adscendentibus piloso, inter-

nodiis superioribus 2.5-3.5 cm. longis; folia numerosa adscendentia,

vagina 1-1.5 cm. longa pallida plus minusve inflata dense longi-

.T pilosa; lamina anguste oblonga vel lineari-oblonga 8-12.5 cm. longa

. 2-2.5 cm. lata longe anguste acuminata, foliis inferioribus apice

. tantum acutiuscula, basi paullo angustata, manifeste multinervia,

^-utrinque sat dense pilis longis laxis patentibus pilosa; flores umbellati,

. umbellis ex axillis supremis nascentibus vulgo compositis 5-8 cm.

longe pedunculatis, bracteis primariis anguste linearibus viridibus

1-2.5 cm. longis vix ultra 1 mm. latis pilosis, umbellulis 6-12 gra-

ciliter 1.5-3 cm. longe pedunculatis, pedunculis glabris vel sparsis-

sime pilosis, umbellulis plerumque 3-5-floris, bracteis parvis incon-

spicuis, pedicellis ca. 1 cm. longis glabris gracillimis; sepala 4 mm.

longa ovalia cymbiformia apice obtusa hyalina carinata, carina

X fere aliformi viridi, densiuscule laxe longipilosa; petala alba vel

227

228 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

caerulescentia venosa ca. 8 mm. longa glabra; capsula subglobosa

sessilis 3.5 mm. alta breviter pilosa; semina 6 forma irregularia sed

plus minusve globosa ca. 1.2 mm. diam. griseo-nigra grosse tubercu-

lata. — Mexico: Guasaremos, Rio Mayo, Chihuahua, shaded canyon

bottom, infrequent, August 10, 1936, Howard Scott Gentry 2365

(type in Herb. Field Mus.).

Closely related to T. collina Brandeg., described from San Luis

Potosi, but that lacks the abundant pubescence of T. chihuahuensis,

also the conspicuous bracts subtending the base of the inflorescence.

The following recent collections of T. collina, from the State of

Tamaulipas, are in the Herbarium of Field Museum: Jaumave,

sierra near San Lucas, Von Rozynski 506. Cerro de Los Armadillos,

Sierra de San Carlos, H. H. Bartlett 10193.

Tradescantia semisomna Standl., sp. nov. — Herba ut videtur

simplex et erecta vel decumbens, e fascicula radicium carnosarum

incrassatarum nascens, caule sat dense foliato gracili vel crass-

iusculo dense pilis brevibus sordidis patentibus pilosulo, internodiis

supremis vaginis fere occultis; folia magna, vaginis 1-1.5 cm. longis

inflatis densiuscule breviter pilosis vel glabratis cilatis; lamina

liguliformis 11-19 cm. longa 2.5-4 cm. lata longiuscule attenuato-

acuminata, foliis infimis apice obtusis supra pilis brevibus albidis

basi bulbosis versus margines densius pilosula, subtus pilis similibus

sed longioribus densius pilosa; flores in vaginis foliorum superiorum

dense fasciculati numerosi vix e vaginis exserti, pedicellis gracilibus

glabris ad 1 cm. longis; sepala pallida et fere hyalina oblonga obtusa

7-9 mm. longa carinata sparse breviter pilosa vel glabrata, apice

puberula. — Mexico: San Bernardo, Rio Mayo, Sonora, on cliff,

August 31, 1935, Howard Scott Gentry 1658 (type in Herb. Field

Mus.)' Rio Bonito, Chihuahua, August 25, 1936, HardeLeSueur 1085.

"Flowers pale blue, closed in the afternoon."

LILIACEAE

Anthericum crinitum Standl., sp. nov. — Radices numerosae

fasciculatae carnoso-incrassatae; folia omnia radicalia linearia 5.5-

7.5 cm. longa medio 6-7 mm. lata utrinque longe anguste attenuata

tenuiter multinervia ubique sat dense pilis longiusculis crassiusculis

pallidis patentibus hirsuta; scapus simplex rigidus erectus cras-

siusculus 18-35 cm. altus ut folia hirsutus, prope medium vel superius

bractea 1 scariosa 1-1.5 cm. longa adpressa onustus, floribus paucis

vel numerosis racemum plus minusve interruptum usque 17 cm.

longum efformantibus, pedicellis crassiusculis rigidis vix ad 3 mm.

STUDIES OF AMERICAN PLANTS 229

longis, bracteis parvis ovatis vel lanceolatis scariosis ciliatis; peri-

anthium glabrum luteum, segmentis ca. 12 mm. longis medio triner-

viis; filamenta gracillima glabra 4 mm. longa, antheris omnino

liberis; capsula sessilis glabra oblonga 1 cm. longa 5 mm. lata viridis

subacute trigona, apice emarginata. — Guatemala: Alameda, June 15,

1937, J. R. Johnston 714 (type in Herb. Field Mus.).

Recognizable at once by the copious pubescence of coarse, rather

lax and long, spreading hairs investing the scape and leaves. The

plant was growing with another, distributed under the same number,

that I take to be Echeandia parviflora Baker, a glabrous plant in

which the anthers are coherent to form a tube or. column.

IRIDACEAE

Sisyrinchium Johnstonii Standl., sp. nov. — Radices fasci-

culatae numerosae carnoso-incrassatae; fibrae foliorum vetustorum

basi plantae persistentes; folia omnia basalia linearia 7.5-8.5 cm.

longa 2.5 mm. lata apicem versus longiattenuata laete viridia rigi-

diuscula multinervia erecta; scapi simplices pauci erecti foliis paullo

breviores usque 6 cm. longi ancipites sed vix compressi laeves;

spatha 1, valva exterior 3.5-5 cm. longa longiattenuata viridis,

interiores ca. 2 cm. longae paullo latiores virides, marginibus inter-

dum pallidis vel purpurascentibus subhyalinis; flores 1-2 subexserti

longipedicellati; ovarium oblongum glabrum fere 4 mm. longum;

perianthium ut videtur coeruleum (bene evolutum non visum) 4 mm.

longum et ultra. — Guatemala: Crater of Volcan de Agua, July 22,

1937, J. R. Johnston 805 (type in Herb. Field Mus.).

The only other Central American species with simple scapes is

S. tinctorium HBK., a plant with fibrous roots, and not at all closely

related to this one.

AMARYLLIDACEAE

Hymenocallis sonorensis Standl., sp. nov. — Bulbus (perfectus

non visus) ca. 7 cm. longus atque 5 cm. latus longicollis; folia basi

vaginantia ca. 6 linearia 18-30 cm. longa et ultra medio 10-12 mm.

lata apicem obtusum versus longe sensim attenuata, basin versus

quoque longiattenuata glabra multinervia, marginibus laevibus;

scapus ca. 30 cm. longus gracilis, floribus 4 arete sessilibus, spathae

valvis albidis angustis usque 4.5 cm. longis; ovarium ovoideum

attenuatum et subrostratum fere 2 cm. longum; perianthii tubus

gracillimus ca. 10 cm. longus parum ultra 1 mm. crassus, laciniis

anguste linearibus 6.5-7.5 cm. longis 1.5 mm. latis; corona fere 2 cm.

longa; filamenta perianthii segmentis paullo breviora, antheris

230 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

linearibus 1.5 cm. longis; stylus gracillimus perianthio paullo longior.

— Mexico: Alamos, Rio Fuerte, Sonora, in valley, July 1, 1936,

Howard Scott Gentry 2267 (type in Herb. Field Mus.).

"Colonial; flowers white. One of the first plants to produce

flowers with the summer rains."

PIPERACEAE

Peperomia chicbulana Trelease, sp. nov. — Herba majuscula

repenti-pendens, caule 2-3 mm. crasso primum laxe subvilloso; folia

alterna lanceolata protracto-acuta, basi acuta, inferiora elliptico-

ovata acuminata, basi rotundata, 9-11 cm. longa atque 2.5-4 cm.

lata, vel 10 cm. longa atque 6 cm. lata, submultiplinervia, subtus in

juventute aliquanto substellato-villosa, in sicco tenuia sed opaca,

petiolo 10-20 mm. longo sparse subvilloso; spicae sympodiales l(ad

3?) scapum brevem bibracteatum terminantes, vix 100 mm. longae

atque 2 mm. crassae, pedunculo vix 10 mm. longo sparse piloso;

bracteae rotundo-peltatae; baccae ellipsoideo-oblongae granulosae

oblique scutellatae, stigmate centrali. — Guatemala: On a tree trunk

in high, mesophytic forest of Monte Chicbul, near La Libertad,

Dept. Pete"n, April 29, 1933, C. L. Lundell 3099 (type in herb.

Univ. Michigan).

Peperomia petenensis Trelease, sp. nov. — Herba majuscula

glabra, caule 2-3 mm. crasso; folia alterna elliptico-ovata subacuta

vel obtusa et emarginata, basi acuta, 7 cm. longa atque 4 cm. lata,

9 cm. longa atque 6 cm. lata, vel 11 cm. longa atque 7.5 cm. lata, e

medio inferiore pinnatinervia, in sicco opaca coriacea anguste

revoluta, petiolo 1.5-2 cm. longo; spicae 1 vel 2 scapum terminalem

ca. 3 cm. longum terminantes, 60-130 mm. longae 2-3 mm. crassae,

pedunculo 15-20 mm. longo; bracteae rotundo-peltatae; baccae

elliptoideae, rostro gracili, stigmate ad basin rostri anteriore.—

Guatemala: In forest on a hill near La Libertad, Dept. Pete"n, March

28, 1933, C. L. Lundell 2129 (type in herb. Univ. Michigan).

Piper andresense Trelease, sp, nov. — Frutex, internodiis

floriferis gracilibus breviusculis subpersistente crispo-pubescentibus;

folia ovata subacuminata, basi cordata vel superiora tantum ro-

tundata, 7-10 cm. longa 4-6.5 cm. lata, 7-nervia vel majora 9-

nervia, supra sparse molliter pubescentia, subtus densius pubescen-

tia, petiolo 10-20 mm. longo crispo-pubescente exalato; spicae 40

mm. longae 2 mm. crassae densiflorae, pedunculo 10 mm. longo

molliter pubescente; bracteae cucullatae ciliatae.— Guatemala: In

STUDIES OF AMERICAN PLANTS 231

the inhabited clearing of San Andre's, Lake Pete"n, Dept. Pete"n,

May 3, 1933, C. L. Lundell 3203 (type in herb. Univ. Illinois).

Piper andresense Trelease, var. subcalvescens Trelease, var.

nov. — Forma glabrescens. — Guatemala: In the inhabited clearing

of Yaxha, Dept. Pet<§n, March 23, 1933, C. L. Lundell 2011 (type in

herb. Univ. Illinois).

Piper colaphitolerans Trelease, sp. nov.— Frutex glaber,

internodiis superioribus brevibus gracilibus; folia lanceolata 8-9

cm. longa 2.5-3 cm. lata, vel inferiora subelliptica atque 4 cm. lata,

anguste acuminata, basi cuneata et solemniter inaequilaterali-un-

guiculata, 3-nervia, in sicco tenuiter papyracea, petiolo vix 5 mm.

longo; spicae 30 mm. longae 2 mm. crassae densiflorae, pedunculo

10 mm. longo; bracteae subcucullatae. — Guatemala: In the ramonal

at Ixlu, Lake Pete"n, Dept. Pete"n, June 15, 1933, C. L. Lundell 3827

(type in herb. Univ. Illinois).

Piper curvatipes Trelease, sp. nov. — Frutex solemniter nodosus

glaber, internodiis granulosis brevibus primo gracilibus; folia lance-

olata acuminata, basi angustata obtusa, altero latere breviore, 11

cm. longa 3.5 cm. lata, e medio inferiore pinnatinervia, nervis 4+3,

revoluta coriacea, petiolo 5+2 mm. longo; spicae 40 mm. longae 3-4

mm. crassae, pedunculo vix 10 mm. longo curvo; bracteae rotundo-

subpeltatae; stigmata 3 sessilia. — Guatemala: On a wet bank at

Nictun, Lake Pet&i, Dept. Pete"n, May 4, 1933, C. L. Lundell 3122

(type in herb. Univ. Illinois).

Piper discolor Trelease, sp. nov. — Frutex, internodiis su-

perioribus breviusculis gracilibus praesertim infra nodos plus minusve

hirsutis; folia elliptica vel oblanceolata anguste acuminata, basi

inaequilaterali subacuta, 16-18 cm. longa 5.5-7.5 cm. lata, e medio

inferiore vel parte paullo altiore pinnatinervia, nervis ca. 6+7,

lucida, supra obscure viridia et glabra, subtus pallidiora, nervis

pilis sursum curvis subvillosa, petiolo ca. 10+2 mm. longo dorso

hirsute; spicae visae juveniles breves breviter pedunculatae; bracteae

magnae pallidae fimbriatae. — Guatemala: In flat-land forest near

La Libertad, Dept. Peten, April 7, 1933, C. L. Lundell 2565 (type in

herb. Univ. Illinois). Also No. 4886 from the same locality.

Piper emancipationis Trelease, sp. nov. — Frutex vel suffrutex

nodosus, internodiis primo brevibus gracilibus persistente griseo-

velutinis; folia elliptico-ovata subabrupte acuminata, basi rotundata

altero latere breviore, 10 cm. longa atque 5 cm. lata vel saepius

232 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

17-22 cm. longa atque 9-11 cm. lata, e medio inferiore vel e parte

paullo altiore pinnatinervia, nervis ca. 5+6, subtus adpresso-pilosa,

in sicco firmo-papyracea lucida, petiolo 5+3 mm. longo vel in foliis

inferioribus reductis 15 mm. longo ubique vaginante transiente

piloso; spicae visae juveniles parvae breviter pedunculatae; bracteae

magnae pallidae triangulari-subpeltatae fimbriatae. — Guatemala:

Flat-land forest near La Libertad, Dept. Pete"n, June 7, 1933, C. L.

Lundell 3658 (type in herb. Univ. Illinois).

Piper emancipationis Trelease, var. longum Trelease, var.

nov.— Folia magis elongato-elliptica, ad 24 cm. longa atque 10 cm.

lata. — Guatemala: Limestone valley forest near La Libertad, Dept.

Pet&i, April 27, 1933, C. L. Lundell 3052 (type in herb. Univ. Illinois).

Maya name pooczuyaax.

Piper instabilipes Trelease, sp. nov. — Frutex nodosus glaber,

internodiis floriferis brevibus gracillimis; folia lanceolato-ovata

anguste acuminata, superiora basi acuta, petiolo exalato, inferiora

basi rotundata, petiolo alato, 10-14 cm. longa 4-6 cm. lata, e medio

inferiore submultiplinervia, nervis 4x2, costa superne nervos teneros

arcuatos paucos emittente, petiolo 10-15 mm. longo; spicae 80 mm.

longae 2 mm. crassae, pedunculo 5 mm. longo; bracteae rotundo-

subpeltatae; stigmata 3 sessilia. — Guatemala: High, upland forest

near Santa Teresa, Subin River, Dept. Peten, April 14, 1933, C. L.

Lundell 2776 (type in herb. Univ. Illinois).

Piper Lundellianum Trelease, sp. nov. — Frutex gracillimus,

ramis fuscis transiente velutinis; folia rotundo-ovata subabrupte

acuminata, basi subacuta vel saepius brevissime truncato-cordata,

aliquanto unguiculata, 9-12 cm. longa 5-10 cm. lata 7-nervia ali-

quanto venosa viridia essentialiter glabra, petiolo 5-10 mm. longo

velutino; spicae 45 mm. longae 2 mm. crassae densiflorae, pedunculo

5 mm. longo velutino; bracteae cucullatae ciliatae. — Guatemala: In

the village of La Libertad, Dept. Pete"n, May 31, 1933, C. L. Lundell

3524 (type in herb. Univ. Illinois).

Piper nitidulilaminum Trelease, sp. nov. — Frutex, internodiis

floriferis breviusculis gracilibus subvillosis sed partibus infra nodos

exceptis glabrescentibus; folia lanceolato-elliptica acuminata, basi

acuta latere altero aliquanto breviore, ca. 15 cm. longa atque 6 cm.

lata, e medio inferiore pinnatinervia nervis 5-6x2, in sicco tenuiter

papyracea, supra lucida, nervis subtus aliquanto breviter pubescenti-

bus, petiolo ca. 8+2 mm. longo breviter villoso; spicae juveniles 60

mm. longae 3 mm. crassae apiculatae, pedunculo 5 mm. longo gla-

STUDIES OF AMERICAN PLANTS 233

brato; bracteae rotundo- vel crescentico-subpeltatae pallidae longi-

ciliatae. — Guatemala: In secondary bush at Remate, Lake Pete"n,

Dept. Pete"n, March 25, 1933, C. L. Lundell 2077 (type in herb Univ.

Michigan).

Piper plumbeicolor Trelease, sp. nov. — Frutex, internodiis

floriferis brevibus gracilibus lucidis subtomentosis; folia elliptico-

subovata acute acuminata, basi rotundata altero latere aliquanto

breviore, 15 cm. longa 8 cm. lata, lucida, supra obscure viridia

rugescentia, subtus plumbea, praesertim ad nervos crispo-pubes-

centia, petiolo ca. 8+2 mm. longo piloso; spicae juveniles 20 mm.

longae 2 mm. crassae cuspidatae, pedunculo brevissimo; bracteae

rotundo-subpeltatae fimbriatae.— Guatemala: In marginal forest

near La Libertad, Dept. Pet£n, April 7, 1933, C. L. Lundell 2554

(type in herb. Univ. Illinois).

Piper quadratilimbum Trelease, sp. nov. — Frutex altus, inter-

nodiis superioribus breviusculis gracilibus dense subretrorse pallido-

pilosis; folia elliptico-subrhombea acuminata, basi angustata in-

aequilateraliter obtusa, 14-16 cm. longa 7-9 cm. lata, e medio in-

feriore pinnatinervia, nervis 6x2, supra minute pubescentia sed

cito granuloso-subscabrida, subtus dense pallido-pubescentia, petiolo

7+3-10+5 mm. longo subvilloso; spicae ca. 70 mm. longae atque

3 mm. crassae, pedunculo 10 mm. longo pubescente; bracteae tri-

angulari-subpeltatae pilosae; baccae triquetrae truncatae; stigmata

3 sessilia. — Guatemala: In high upland forest near El Paso, Dept.

Pete"n, April 14, 1933, C. L. Lundell 1488 (type in herb. Univ. Mich-

igan).

Piper rematense Trelease, sp. nov. — Frutex, internodiis flo-

riferis subgracilibus brevibus striatis ad nodos pilosulis; folia ellip-

tica vel subrhombea acuminata, basi acuta interdum obscure un-

guiculata, 9-11 cm. longa 4.5-6.5 cm. lata 5-nervia, nervis subtus

sparse pilosis, petiolo 5-10 mm. longo subvilloso; spicae 35-40 mm.

longae 2-3 mm. crassae, pedunculo 5 mm. longo villoso; bracteae

subspathulatae pilosae; ovarium oblongum, stigmatibus 3 erectis.—

Guatemala: In an inhabited clearing, Remate, Lake Pete"n, Dept.

Pete"n, Guatemala, March 25, 1933, C. L. Lundell 2087 (type in herb.

Univ. Michigan).

Piper simulhabitans Trelease, sp. nov. — Frutex 2-metralis,

ramis et petiolis (? atque pagina inferiore laminae) primo floccosis;

folia ovata acuminata, basi obtusa aliquanto revoluto-cordulata,

7.5-12 cm. longa 4.5-8 cm. lata 5-7-nervia, petiolo 5-15 mm. longo;

234 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

spicae 50 mm. longae 3 mm. crassae, pedunculo 5 mm. longo; brac-

teae subcucullatae pilosae. — Guatemala: In secondary forest near

Remate, Lake Pete'n, Dept. Pete'n, March 25, 1933, C. L. Lundell

2073 (type in herb. Univ. Michigan).

Piper tikalense Trelease, sp. nov. — Frutex 2-3-metralis, inter-

nodiis floriferis brevibus gracillimis hispidis vel hirsutis; folia ovata

vel lanceolato-ovata protracto-acuminata, basi inaequaliter ro-

tundata, 10-13 cm. longa 3.5-5 cm. lata, e medio inferiore pinna-

tinervia, nervis 4-5x2, supra granuloso-scabra, subtus ad nervos

hirsuta vel subvillosa, plus minusve rugulosa, petiolo 10 mm. longo

hirsuto; spicae 45-50 mm. longae 3 mm. crassae, pedunculo 3 mm.

longo hispido; bracteae rotundato-subpeltatae albo-ciliatae. — Guate-

mala: In forest at Tikal, Dept. Pete'n, April 12-15, 1931, H. H.

Bartlett 12595 (type in herb. Univ. Illinois).

Piper yalochanum Trelease, sp. nov. — Frutex 2-3-metralis,

internodiis floriferis brevibus gracilibus scabro-hispidis vel hirsutis;

folia lanceolata subcaudato-acuminata, basi inaequilaterali latere

longiore rotundata, 14 cm. longa 2.5^4 cm. lata, e tertio infimo

pinnatinervia, nervis impressis 4-5x2, aliquanto rugosa, supra

granulosa, subtus ad nervos patenti-pubescentia, petiolo 5 mm.

longo hirsuto; spicae 70 mm. longae 3 mm. crassae, pedunculo vix

5 mm. longo hirsuto; bracteae rotundo-subpeltatae ciliatae.—

Guatemala: In ramon forest along the Dos Arroyos- Yaloch Trail,

Dept. Pete'n, May 2, 1931, H. H. Bartlett 12849 (type in herb.

Univ. Illinois).

Piper yaxhanum Trelease, sp. nov. — Frutex 2-3-metralis,

ramis nigrescentibus crispo-pubescentibus; folia ovata acuminata,

basi sensim vel subito acuta, 7-nervia, 8-12 cm. longa 4-8 cm.

lata, ad nervos pubescentia et interdum subtus quoque inter nervos

pubescentia, petiolo 5-20 mm. longo crispo-pubescente; spicae 40-50

mm. longae 2 mm. crassae, pedunculo 8-10 mm. longo. — Guatemala:

In forest shade along the Yaxha-Remate road, Dept. Pete'n, June 16,

1933, C. L. Lundell 3826 (type in herb. Univ. Illinois).

ULMACEAE

Ampelocera Hottlei Standl. Trop. Woods 51: 11. 1937. Celtis

Hottlei Standl. op. cit. 20: 20. 1929.— Mexico: Ubero, Oaxaca,

30-90 meters, June, 1937, L. Williams 9497. Vernacular name

Cautivo. A tree 13-21 meters high, the crown rounded or spread-

ing; trunk 35-60 cm. in diameter, unbranched for 7 meters, often

STUDIES OF AMERICAN PLANTS 235

with 5 narrow buttresses; bark grayish brown, fairly smooth. Said

to be known also by the name Frijolillo. The genus is new for

Mexico.

Ulmus LeSueurii Standl., sp. nov. — Ramuli graciles teretes

griseo-brunnescentes lenticellis paucis albidis conspersi, novellis

dense pilis laxis albidis adscendentibus vel subadpressis pilosis,

internodiis brevibus; stipulae deciduae conspicuae brunneae striatae

lanceolato-oblongae acutae plerumque 5-7 mm. longae; folia parva

brevissime petiolata firma, petiolo ad 4 mm. longo dense patenti-

piloso; lamina oblongo-elliptica 3.5-5.5 cm. longa 1.7-2.5 cm. lata

acuta vel subacuminata, basi anguste rotundata, basi ipsa subcordata

vel interdum truncata, in toto margine subdupliciter arete crenato-

serrata, serraturis subpatentibus, id est non incurvis, subulato-

mucronatis, supra in sicco laete viridis ubique pilis brevibus et

longis intermixtis subadpressis vel subpatentibus pilosa, tactu

mollis, subtus paullo pallidior similiter pilosula, costa gracili elevata,

nervis lateralibus utroque latere ca. 14 prominulis rectis in mar-

ginem desinentibus.— Mexico: Rio Bonito, Chihuahua, August 24,

1936, HardeLeSueur 595 (type in Herb. Field Mus.).

The type material, unfortunately, is in sterile and rather young

condition, but the leaf characters are such that there is no doubt

that the tree represents a tree distinct from other Mexican

species of Ulmus. Evidently it is similar to U. divaricata C. H.

Mueller, of Nuevo Leon, which has often long-acuminate leaves,

very scabrous on the upper surface, with relatively appressed

serrations.

MORACEAE

Brosimum terrabanum Pittier, Contr. U. S. Nat. Herb. 18:

68. /. 76. 1914. — This large tree, so common along the Atlantic

coast of Central America, has not been recorded from Mexico, but

the following collections made in 1937 are now available: Fortune,

Coatzacoalcos River, Veracruz, at 30-50 meters, L. Williams 8950,

8583, 8387 A; Ubero, Oaxaca, 30-90 meters, Williams 9179, 9394,

9489. Local names Ojoche bianco, Ojoche de hoja menuda, Ojochillo.

A tree of 18-27 meters, the trunk often 60 cm. or more in diameter,

sometimes with narrow buttresses, the bark dark brown or almost

black. The leaves are reported to be much eaten by cattle.

Piratinera panamensis Pittier, Contr. U. S. Nat. Herb. 20:

100. pi. 7. 1918. — This tree has been known to range from Panama

to British Honduras, and may now be reported from Mexico: Ubero,

236 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Oaxaca, 30-90 meters, May, 1937, L. Williams 9391. Vernacular

name Asta. A tree 22 meters or more in height, the crown usually

narrow; trunk straight or nearly so, not buttressed, the bark grayish

brown, fairly smooth; fairly common on dry slopes in the forest.

The genus is new for Mexico, but there is some question as to whether

it is really separable from Brosimum.

LORANTHACEAE

Phoradendron aurantiacum Trelease, sp. nov. — Aequitoriales-

UndulataeC!}. Pseudodichotoma granulosa in sicco aureobrunnea,

ramis breviusculis cataphyllis basalibus tantum onustis, andro-

gyna(?); internodii breviusculi teretes 30-40 mm. longi 2-4 mm.

crassi; cataphylla annulari-bifida albomarginata; folia lanceolata

obtusissima 4-5 cm. longa 1.5-2 cm. lata solemniter opaca obscure

pinnatinervia, basi vix 10 mm. longe acute contracta; spicae sub-

solitariae fere sessiles graciles, adultae 30 mm. longae, articulis ca.

10 brevibus, floribus 12 vel paucioribus in series 4 vel 4+2 dispositis,

squamis magnis. — Guatemala: On a tree in Sabana Zis, Lake Pete"n,

Dept. Pete*n, May 3, 1933, C. L. Lmndell 3191 (type in herb. Univ.

Illinois).

Phoradendron franciscanum Trelease, sp. nov. — Aequitor-

iales-Quadrangulares. Aliquanto pseudodichotoma glabra paullo

rugulosa vel granulosa, cataphyllis tantum basalibus, androgyna(?) ;

internodii 40 mm. longi 2-3 mm. crassi acute quadrangulares superne

aliquanto compressi; cataphylla fere distincta albomarginata; folia

elliptico-oblanceolata obtusa 2.5-3 cm. longa 1 cm. lata cuneatim

subsessilia crispata, obscurissime basinervia; spicae plerumque

solitariae vix 30 mm. longae, articulis ca. 4 oblongis ca. 12-floris,

floribus 4-seriatim dispositis, pedunculo 3 mm. longo; fructus ruber

globosus 3 mm. diam.; sepala inflexa. — Guatemala: On a tree in

Sabana San Francisco, near La Libertad, Dept. Pete"n, April 1, 1933,

C. L. Lundell 2398 (type in herb. Univ. Illinois). La Libertad, Lundell

3834.

Phoradendron libertadanum Trelease, sp. nov. — Aequitoria-

les-Quadrangulares. Copiose ramosa glabra, interdum obscure hinc

inde granulosa, cataphyllis ramorum tantum basalibus, internodiis

30-60 mm. longis 2-6 mm. crassis acute quadrangularibus superne

ancipitibus; par cataphyllorum 1 basale, cataphyllis patentibus

pallido-marginatis; folia oblonga mucronato-acuta circiter 30 mm.

longa atque 5 mm. lata, cuneatim 5 mm. longe subpetiolata, crispata,

obscurissime basinervia; inflorescentia? — Guatemala: Growing on

STUDIES OF AMERICAN PLANTS 237

Cochlospermum vitifolium in marginal forest, La Libertad, Dept.

Peten, April 1, 1933, C. L. Lundell 2401 (type in herb. Univ. Illinois).

La Libertad, Aguilar 12.

Vernacular name Matapalo.

Phoradendron petenense Trelease, sp. nov. — Aequitoriales-

Quadr angular es. Majuscula copiose ramosa glabra, plus minusve

ruguloso-granulosa; androgyna(?); internodii modici 40-60 mm.

longi 2-4 mm. crassi acute quadrangulares, superne aliquanto com-

pressi; par cataphyllorum 1 basale, cataphyllis brevibus fere dis-

tinctis; folia elliptico-oblonga obtusa aliquanto mucronata 4-6 cm.

longa 1-2 cm. lata, cuneatim subsessilia, subtenuia tenuiter basi-

nervia; spicae plerumque solitariae longiusculae 40 mm. longae,

articulis ca. 4 elongatis atque 4-seriatim 16-floris, pedunculo ca. 5

mm. longo; fructus ruber globosus laevis 4 mm. diam., sepalis arete

inflexis. — Guatemala: On Curatella americana, La Libertad, Dept.

Pete"n, April 1, 1933, C. L. Lundell 2400 (type in herb. Univ. Illinois).

Struthanthus guatemalensis Standl., sp. nov. — Frutex

epiphyticus gracilis ramosus, ramis gracilibus subflexuosis subangu-

latis praesertim ad angulos dense ferrugineo-furfuraceis, internodiis

brevibus vel elongatis; folia modica breviter petiolata subcoriacea

fragilia, petiolo graciusculo 4-6 mm. longo anguste canaliculate

glabro; lamina oblongo-ovata 4-5.5 cm. longa 2-2.5 cm. lata apice

anguste rotundata, basi acuta vel obtusa, marginata, marginibus

minute ferrugineo-furfuraceis, utrinque opaca, concolor, costa subtus

prominente tenui furfuracea, lamina aliter glabra, nervis venisque

utrinque prominulis teneris, nervis lateralibus utroque latere 4-5

angulo angusto adscendentibus; spicae axillares solitariae 1-1.5 cm.

longae vix ultra 7 mm. longe pedunculatae, articulis ca. 5 bifloris,

bracteis latissimis rotundatis patentibus, floribus solitariis sessilibus;

fructus immaturus oblongus 3 mm. longus sparse minute tuber-

culatus. — Guatemala: Finca Moca, 900 meters, April 5, 1931, J.

Bequaert 46 (type in Herb. Field Mus.).

ARISTOLOCHIACEAE

Aristolochia Cardenasii Standl., sp. nov. — Herba scandens

vel prostrata, caulibus gracilibus striatis subsparse breviter hirsutis,

internodiis breviusculis; folia modica longipetiolata membranacea,

petiolo crassiusculo 4.5-7 cm. longo striato breviter hirsute; lamina

reniformis integra ca. 6 cm. longa atque 9 cm. lata apice latissime

rotundata vel fere truncata, basi profunde cordata et breviter de-

238 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

currens, lobis basalibus latissime rotundatis, supra subsparse minute

puberula, tactu laevis, subtus fere concolor dense pilis brevibus

patentibus inferne incrassatis pilosa, basi 5-nervia; flores axil-

lares solitarii ca. 1.5 cm. longe pedunculati, bractea ut videtur

caduca; ovarium lineare dense pilosum; calyx extus dense pilis longis

laxis patentibus pilosus, utriculo subgloboso 1.5 cm. longo, tubo

deflexo arcuato 1.5 cm. longo vel ultra nervoso, labio orbiculari 3

cm. longo et aequilato apice obtuso vel subrotundato et cuspidato-

mucronato, basi profunde anguste cordato, margine appendicibus

filiformibus apice paullo incrassatis ca. 8 mm. longis dense ciliato.—

Bolivia: Charagua, Chaco Region, 700 meters, climbing or repent

on sandy, rather damp soil, April, 1934, Martin Cardenas 2618 (type

in Herb. Field Mus.).

"Flowers purple and yellow."

Aristolochia Marshii Standl., sp. nov. — Herbacea volubilis,

caule ut videtur simplici gracillimo sparse pilis brevibus laxis albidis

piloso, internodiis elongatis; folia modica longipetiolata herbacea,

petiolo gracili 1-3.5 cm. longo sparse piloso; lamina profunde fere

ad basin triloba 6-9 cm. longa, basi profunde cordata, sinu lato

aperto, lobo terminali anguste oblongo ad 1.5 cm. lato fere e basi ad

apicem sensim attenuate, lobis lateralibus semiovatis obtusis multo

brevioribus, lamina supra viridi sparse breviter pilosula, subtus

paullo pallidiore ad nervos breviter pilosula et inter nervos minutis-

sime puberula vel glabrata, basi 5-nervia ; flores axillares solitarii ca.

1 cm. longe pedunculati, bractea lineari-lanceolata basi acuta fere

1 cm. longa; ovarium ca. 5 mm. longum lineari-oblongum dense

patenti-pilosum; calyx extus subdense paten ti-pilosus, utriculo

obovoideo ca. 8 mm. longo, tubo subrecto fere 1 cm. longo 2 mm. vel

paullo ultra lato, limbo recto complicato fere 3 cm. longo et basi 1

cm. lato longe anguste apicem obtusum versus attenuate, lobis

basalibus brevissimis basi subauriculatis. — Mexico: Muzquiz, Coa-

huila, Spring of 1935, Ernest G. Marsh 10 (type in Herb. Field Mus.).

Probably conspecific is C. H. & M. T. Mueller 311 from Diente

Canyon, near Monterrey, Nuevo Leon, collected in July, 1933.

The plant is closely related to A. brevipes Benth., a very variable

species, as generally interpreted, but it differs sufficiently from that

in the large, deeply lobed leaves with narrow lobes, and in the narrow,

not cordate bracts.

Aristolochia martiniana Standl., sp. nov. — Herbacea scandens

ramosa, caulibus gracilibus glabris, internodiis valde elongatis; folia

STUDIES OF AMERICAN PLANTS 239

modica longipetiolata membranacea, petiolo gracili glabro ca. 2

cm. longo; pseudostipulae subrotundatae deciduae ca. 8 mm. longae;

lamina hastata ca. 7.5 cm. longa et basi 4.5 cm. lata, paulo infra

medium subcontracta, longiacuminata, basi profunde late cordata,

lobis posticis anguste rotundatis subretrorsis, in sicco fusca, glabra

vel subtus prope basin obscure minute puberula, basi 5-7-nervia;

flores axillares solitarii 5-6.5 cm. longe pedunculati, bractea caduca

vel obsoleta; ovarium lineare ad 2 cm. longum vix 2 mm. latum

glabrum; calyx glaber, utriculo ovali 2-3 cm. longo 1-2 cm. lato,

tubo ex utriculo angulo recto divergente brevi crasso, labio ovali

7.5 cm. longo 4 cm. lato apice rotundato et 3 mm. longe mucronato,

basi profunde cordato, lobis basalibus rotundatis. — Peru: Juanjui,

Alto Rio Huallaga, Dept. San Martin, 400-800 meters, in forest

clearing, December, 1935, G. King 4168 (type in Herb. Field Mus.).

"Flowers wine-red and yellow."

Aristolochia quercetorum Standl., sp. nov. — Herba prostrata,

caulibus ut videtur simplicibus gracilibus flexuosis dense patenti-

pilosis, internodiis brevibus; folia inter minora brevi ter petiolata

membranacea, petiolo cra.ssiusculo 7-9 mm. longo hirtello; lamina

oblongo-sagittata vel in foliis infimis interdum triangulari-sagittata

4-7.5 cm. longa 2-2.5 cm. lata apicem obtusum vel acutiusculum

versus sensim angustata, basi profunde (ad 1.5 cm.) anguste cordata,

lobis basalibus anguste rotundatis vel obtusis retrorsis, supra minute

puberula et asperula vel glabrata, subtus paullo pallidior ad nervos

hirtella et inter nervos scaberulo-puberula, basi 5-nervia; flores

axillares solitarii ca. 4 mm. longe pedunculati, bractea late ovata

viridi obtusa 2.5 mm. longa pilosa; ovarium 5 mm. longum anguste

oblongum dense hirtellum; calyx extus dense hirtellus, utriculo

ovoideo fere 1 cm. longo atque 7 mm. lato, tubo lato 4 mm. tantum

longo, labio rotundato-ovato 1 cm. longo vel paullo ultra obtuso,

basi utroque latere subauriculato, auriculis late rotundatis; capsula

1.5 cm. longa brevissime hirtella, valvulis 6-7 mm. latis. — Mexico:

Guasaremos, Rio Mayo, Chihuahua, in oak flat, September 26,

1935, Howard Scott Gentry 1872 (type in Herb. Field Mus.).

Vernacular name Yerba del indio. A decoction of the roots is a

local remedy for gas on the stomach and is employed as a wash for

sores.

POLYGONACEAE

Coccoloba chaccensis Standl., sp. nov. — Frutex 2-3-metralis,

ramulis flexuosis gracilibus teretibus griseobrunnes- centibus glabris,

novellis minute puberulis, internodiis brevibus vel elongatis; ocreae

240 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

parvae puberulae caducae; folia parva petiolata subcoriacea, petiolo

crassiusculo 4-8 mm. longo minute ciliolato; lamina late elliptica vel

ovato-elliptica 2.5-5 cm. longa 1.5-3.2 cm. lata obtusa vel interdum

apice anguste rotundata, basi rotundata et saepe breviter emargi-

nata, glabra, supra opaca, costa nervisque prominentibus, subtus

paullo pallidior, costa gracili prominente, nervis lateralibus utroque

latere ca. 7 angulo latiusculo adscendentibus prominulis teneris fere

rectis justa marginem conjunctis, venulis obscure laxe reticulatis,

lamina subtus ubique densiuscule fusco-puncticulata ; flores sessiles

spicati, spicis terminalibus 4.5-9 cm. longis breviter pedunculatis

interruptis, floribus remotis ut rhachi glabris, ocreolis vix 1 mm.

longis; perianthii segmenta rotundato-ovalia apice rotundata viridia

1.5 mm. longa fere ad basin distincta. — Bolivia: Cururenda, Chaco

Region, 200 meters, in sandy loam, March, 1934, Martin Cardenas

2529 (type in Herb. Field Mus.).

"The leaves are like coca when chewed." The species is note-

worthy for its conspicuously small leaves.

CHENOPODIACEAE

Halogeton sativus (L.) C. A. Mey. — Some time ago Prof. A. 0.

Garrett sent to the writer material of a Chenopodiaceous plant

which offered considerable difficulty in determination. It was

finally identified by Dr. Paul Aellen, authority upon this group,

as Halogeton sativus (L.) C. A. Mey. (Salsola sativa L.), a species

native in southern Spain and Algeria. The plant was collected in

August, 1935, at Wells, Nevada, by Ben Stahmann. It was found

along railroad tracks, where it is reported to be spreading rapidly.

It will be interesting to learn whether this new addition to the

United States flora thrives as well as Bassia hyssopifolia (Pall.)

Kuntze, a related plant of somewhat similar appearance, which, if

I remember correctly, also was found in the United States first in

Nevada.

AMARANTHACEAE

Amaranthus Parodii Standl., sp. nov. — Herba annua erecta

18-30 cm. alta e basi ramosa, caulibus crassis teretibus vel obscure

obtuse angulatis pallidis glabris vel superne sparsissime villosulis,

interncdiis brevibus; folia inter minora longissime petiolata herbacea,

petiolo gracili 1.3-2.5 cm. longo glabro vel sparse villosulo; lamina

ovato-rhombea in sicco interdum complicata 2-3.5 cm. longa 1.2-2

cm. lata apicem retusum et mucronatum versus angustata, basi

cuneata vel obtusa et abrupte longe decurrens, glabra vel subtus

STUDIES OF AMERICAN PLANTS 241

ad nervos sparse villosula, nervis lateralibus utroque latere ca. 6

angulo semirecto adscendentibus pallidis conspicuis; flores monoeci

glomerulati, glomerulis magnis dense multifloris axillaribus et

petiolis multo brevioribus, vel saepe spicam densam terminalem

foliosam ca. 12 mm. crassam efformantibus; bracteae glabrae lucidae

late ovatae sepalis femineis fere duplo breviores mucronatae; sepala

femina spathulato-obovata 2 mm. longa prope medium contracta et

longe in unguiculam angustam decurrentia, apice late rotundata vel

subtruncata et breviter mucronata glabra erecta integra; utriculus

sepalis paullo brevior apice tridentatus rugosus, ut videtur indehis-

cens; semen nigrum lucidum 1.2 mm. latum laeve. — Argentina:

Amaicha, Prov. Tucuman, in maize fields, 2,300 meters, February 2,

1933, L. R. Parodi 11040 (type in Herb. Field Mus.). Vera, Prov.

Santa Fe, 60 meters, November 13, 1933, Parodi 11277.

Vernacular name Ataco.

Iresine Cardenasii Standl., sp. nov. — Frutex 2-metralis ramosus,

ramis gracillimis teretibus densissime arete albo-stellato-tomentosis,

internodiis elongatis; folia modica breviter petio lata papyracea,

petiolo crassiusculo 7-10 mm. longo; lamina oblongo-lanceolata vel

anguste elliptico-oblonga 7-11 cm. longa 2-3.8 cm. lata apicem

acutiusculum versus sensim attenuata, basi acuta vel acuminata,

supra in sicco viridis opaca, primo laxe tomentosa, cito glabrata,

costa nervisque manifestis sed non elevatis, subtus dense arete albo-

stellato-tomentosa, costa gracili elevata, nervis lateralibus utroque

latere ca. 12 angulo lato adscendentibus subarcuatis prominentibus;

flores dioeci, spiculis parvis numerosissimis laxe paniculatis, paniculis

magnis foliosis usque 27 cm. latis; spiculae plerumque 5-8 mm. longe

pedunculatae ca. 4 mm. latae ovoideae vel subglobosae; bracteae et

bracteolae rotundato-ovatae hyalinae obtusae et apiculatae glabrae

sepalis aequilongae; sepala floris feminei 1.5 mm. longa oblonga

acutiuscula dense pilis longissimis albis pilosa. — Bolivia: Sailapata,

Prov. Ayopaya, Dept. Cochabamba, 2,000 meters, dry, rocky places,,

October, 1935, Martin Cardenas 3210 (type in Herb. Field Mus.).

NYCTAGINACEAE

Mirabilis Mueller! Standl., sp. nov. — Herba ut videtur decum-

bens et laxa ramosa, ramis gracilibus subteretibus sparse vel superne

dense puberulis, internodiis foliis longioribus; folia parva longi-

petiolata herbacea, petiolo gracili 7-13 mm. longo sparse puberulo

vel glabro; lamina forma variabilis late deltoideo-ovata vel late

rotundato-ovata, interdum latior quam longa, 1.5-3 cm. longa 1.3-2.3

242 FIELD MUSEUM OF NATURAL HISTORY— BOTANY, VOL. XVII

cm. lata, versus apicem obtusum vel acutum angustata vel interdum

apice late obtusa et apiculata, basi breviter cordata vel truncata,

glabra, rhaphidibus brevibus solemniter notata, basi 3-5-nervia,

costa utroque latere nervos 1-2 emittente; involucra axillaria et

solitaria vel apice rami subcymosa, pedunculis ad 12 mm. longis

gracillimis glanduloso-villosulis; involucrum triflorum viride ad

anthesin 8 mm. longum late campamilatum dense breviter glandu-

loso-villosulum infra medium 5-lobum, lobis late ovatis acutiusculis;

anthocarpium juvenile breviter pilosulum angulatum; perianthium

18 mm. longum vel ultra, tubo extus villosulo fauce ad 4 mm. lato

sensim a basi ad faucem dilatato. — Mexico: La Mina, mountains

near Monterrey, Nuevo Leon, July, 1933, C. H. & M. T. Mueller

49 (type in Herb. Field Mus.).

Related to M. longipes Standl., described from Durango, which

has acute or attenuate leaves deeply cordate at the base, and smaller

involucres.

Torrubia asperula Standl., sp. nov. — Arbor; ramuli teretes

fusco-ferruginei lenticellis paucis magnis elongatis notati, internodiis

brevibus, novellis subdense ferrugineo-villosulis; folia plerumque

ternata parva breviter petiolata subcoriacea, petiolo 5-8 mm. longo

ferrugineo- villosulo; lamina elliptico-oblonga vel anguste elliptico-

oblonga 5-7 cm. longa 1.8-2.5 cm. lata acuminata, basi acuta, supra

in sicco lucida glabra, nervis venulisque prominulis, subtus brunne-

scens sublucida asperulo-puberula vel ad nervos ferrugineo-villosula,

costa gracili elevata, nervis lateralibus utroque latere ca. 10 angulo

fere recto divergentibus fere rectis irregularibus prope marginem

arcuato-conjunctis, venis prominulis laxe reticulatis, margine vulgo

recurve; inflorescentiae numerosae laxe multiflorae 2.5-4 cm. longe

graciliter pedunculatae 3-3.5 cm. longae et paullo latiores, basi

vulgo trichotomae vel ramis interdum verticillatis gracillimis fere

glabris, nodis plus minusve ferrugineo-villosulis, floribus cymosis

vel subumbellatis, pedicellis ad 3.5 mm. longis, saepe fere nullis,

bracteis minutis obscuris; perianthium masculum 4 mm. longum

e basi faucem 2 mm. latum versus sensim dilatatum, sparse minutis-

sime ferrugineo-puberulum vel glabrum, dentibus brevissimis obtusis;

stamina breviter exserta. — Brazil : Parati, Santa Catharina, October

25, 1928, F. C. Hoehne 23182 (type in Herb. Field Mus.).

Torrubia Hoehnei Standl., sp. nov. — Arbor magna; ramuli

crassiusculi subteretes dense arete ferrugineo-tomentosi, internodiis

brevibus; folia majuscula opposita vel rarius ternata petiolata papy-

STUDIES OF AMERICAN PLANTS 243

raceo-coriacea, petiolis inaequalibus 6-25 mm. longis ferrugineo

tomentosis; lamina ovato-oblonga vel elliptico-oblonga, rare elliptica

vel subrotundata, vulgo 9-18 cm. longa atque 4.5-7 cm. lata, breviter

acuminata vel acuta, basi interdum valde obliqua obtusa vel sub-

rotundata, supra in sicco fusca sublucida vel fere opaca, primo sat

dense ferrugineo-puberula serius glabrata, costa prominula, nervis

manifestis sed vix elevatis, subtus fere concolor dense minute fer-

rugineo-tomentosa, costa gracili elevata, nervis lateralibus utroque

latere ca. 11 prominulis angulo lato interdum fere recto abeuntibus

subarcuatis, venulis inconspicuis laxe reticulatis; inflorescentiae

cymoso-corymbosae erectae sublaxe multiflorae 2-5 cm. longe pedun-

culatae ca. 5 cm. latae, pedunculo crassiusculo dense ferrugineo-

tomentoso, ramis basalibus crassiusculis subpatentibus dense fer-

rugineo-tomentosis, floribus plerumque sessilibus cymoso-congestis,

bracteis parvis dense tomentosis; perianthium masculum 2.5-3 mm.

longum late campanulatum basi acutum minute ferrugineo-

tomentulosum truncatum et remote brevissime denticulatum;

stamina ca. 7 perianthio plus quam duplo longiora; fructus

immaturus oblongus 7 mm. longus 2.5-3 mm. latus apice contractus,

primo sparse ferrugineo-tomentulosus cito glabratus. — Brazil:

Iguape, Sao Paulo, September 21, 1929, F. C. Hoehne 24825 (type

in Herb. Field Mus.). Praia Grande, Sao Paulo, November 10,

1898, Alb. Loefgren 12942 ( Herv. Com. Geogr. e Geol. de S. Paulo 4208).

Cubatao, S. Paulo, August 23, 1899, Hoehne 23855.

An apparently well marked species of this genus that is so

amply represented in Brazil, noteworthy especially for the abundant,

ferruginous pubescence found on almost all parts of the plant.

Torrubia Loefgrenii Standl., sp. nov. — Kami graciles teretes

brunneo-ochracei lucidi glabri, internodiis elongatis; folia majuscula

opposita sessilia amplectantia (ad summum vix 2 mm. longe petio-

lata) oblonga, elongato-oblonga vel lanceolato-oblonga 11-15.5 cm.

longa 4-5.5 cm. lata acuta vel breviter acuminata, apice ipso obtuso

vel subacuto, basi rotundata vel subcordata, papyracea, supra in

sicco fuscescentia lucida, nervis venisque parum conspicuis vix

prominulis, utrinque glabra, subtus lucida, costa gracili prominente,

nervis lateralibus utroque latere ca. 15 angulo fere recto divergenti-

bus rectis sed irregularibus; inflorescentia mascula axillaris graciliter

4-4.5 cm. longe pedunculata cymoso-paniculata pauciramosa ca. 3.5

cm. longa atque aequilata, ramis gracilibus angulo lato adscendenti-

bus glabris vel ad nodos inconspicue ferrugineo-puberulis, bracteis

minutis deciduis, floribus aggregatis sessilibus vel subsessilibus;

244 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

perianthium masculum 4 mm. longum sensim e basi ad faucem

2 mm. latum dilatatum glabrum, dentibus brevissimis obtusis;

stamina breviter exserta. — Brazil: Sao Sebastiao, Sao Paulo, July

26, 1895, Alb. Loefgren (Herv. Com. Geogr. e Geol. de S. Paulo 3061}

(type in Herb. Field Mus.).

The outstanding character of the species is found in the sessile

leaves.

GARYOPHYLLACEAE

Cerastium guatemalense Standl., sp. nov. — Herba ut videtur

perennis 30 cm. alta et ultra basi decumbens, radicibus non visis,

caulibus graciusculis sat dense pilis laxis longiusculis patentibus

pallidis viscido-villosis, intemodiis numerosis, inferioribus foliis

brevioribus, supremis foliis multo longioribus; folia linearia 2-3.5

cm. longa prope basin 2-4 mm. latis apicem angustum versus sensim

attenuata 1-nervia utrinque sat dense pilis longis laxis viscidis basi

subbulbosis villosa; inflorescentia laxe aperte ramosa ca. 20 cm.

longa, ramis gracilibus dense viscido-villosis, cymis laxe paucifloris,

floribus mitantibus, pedicellis gracilibus plerumque 1-3 cm. longis

dense viscido-villosis; sepala 5-6 mm. longa oblongo-ovata acumi-

nata viridia sat dense pilis longis laxis viscido-villosa, marginibus

superne pallidis hyalinis; petala alba vix ultra 7 mm. longa; capsula

subcurva 12-13 mm. longa medio 3.5 mm. lata hyalina 10-nervia,

dentibus brevissimis; semina brunnea grosse tuberculata 1.2 mm.

diam.— Guatemala: Volcan de Agua, presumably on the highest

slopes toward the crater, July 22, 1937, J. R. Johnston 816 (type

in Herb. Field Mus.).

This is the first native species of Cerastium, so far as I know,

to be recorded from Central America.

RANUNCULACEAE

Delphinium calcar-equitis Standl., sp. nov. — Perennis elata

60 cm. alta vel ultra, caule infra inflorescentiam simplici gracili

tereti glabro versus basin purpureo tincto; folia basalia non visa,

caulinis 2.5-9 cm. longe petiolatis, petiolo striato prope basin

vaginato-dilatato et ciliato; lamina ambitu pentagona ca. 4.5 cm.

longa atque 5.5 cm. lata fere ad basin tripartita, segmento terminali

fere ad medium trilobo, lobis grosse 2-4-crenatis, crenaturis ovato-

ovalibus apice constricto-apiculatis, apice purpurascente, segmentis

lateralibus fere ad basin bilobis similiter crenatis, lamina basi pro-

funde late cordata supra viridi sparse puberula et minute glandulosa,

subtus glaucescente ad nervos venasque sparse pilosula; racemi

STUDIES OF AMERICAN PLANTS 245

simplices vel pauciramosi ca. 11 cm. longi laxissime pauciflori,

rhachi sparse incurvo-pilosula, bracteis linearibus usque 1 cm. longis;

pedicelli gracillimi, inferiores usque 5 cm. longi incurvo-pilosuli,

bracteolis 2 versus apicem insertis anguste linearibus ca. 5 mm.

longis; sepala intense violacea rotundato-ovata ca. 1 cm. longa

obtusa extus sparse incurvo-pilosula, calcare recto 2 cm. longo

obtuso basi 5 mm. lato apicem versus sensim attenuate; petala

superiora albida glabra apice caeruleo suffusa et breviter bidentata,

inferiora intense violacea bifida albo-barbata. — Mexico: Memelichi,

Rio Mayo, Chihuahua, 2,250 meters, on pine slope, September 13,

1936, Howard Scott Gentry 2700 (type in Herb. Field Mus.).

A handsome and showy plant, noteworthy for the lax, few-

flowered racemes, large flowers, and long spurs. Local name Espuela

de caballero.

Delphinium valens Standl., sp. nov. — Perennis erecta, caule

fistuloso-incrassato inferne 1 cm. crasso simplici striato dense foliato

ubique sed non conspicue pilis brevibus laxis subpatentibus pallidis

non viscidis piloso, ca. 60 cm. alto; folia numerosa densa, basalia

non visa, caulina 2.5-5 cm. longe petiolata, petiolo piloso basi sub-

dilatato; lamina utrinque pilis albidis subsparsis incurvis pilosa fere

ad basin 5-partita, segmentis angustis basi cuneato-angustatis plus

minusve trilobis, lobis profunde laciniato-lobulatis vel laciniato-

serratis, serraturis oblongis vel anguste triangularibus apice obtusis

et incrassatis vel subtruncatis; racemus simplex dense foliatus, foliis

caulinis paullo minoribus, supremis subsessilibus, floribus subcon-

gestis, pedicellis 1-3 cm. longis rigidis subincurvis sat dense pilis

gracillimis longiusculis patentibus viscido-pilosis, apice bibracteo-

latis; flores perfecti non visi, calcare crasso incurvo ca. 1 cm. longo,

sepalis ciliatis et parce pilosis aequilongis; folliculi 3 glabri, immaturi

6 mm. longi in stylum 3 mm. longum sensim attenuati. — Mexico:

Abundant in upper pine woods, peak of Cerro Potosi, Municipio

de Galeana, Nuevo Leon, July 21, 1935, C. H. Mueller 2264 (type

in Herb. Field Mus.).

The flowers are described as dark purple, fading with age. They

appear to be of the dark, brownish purple that characterizes some

of the species of the southern Rocky Mountains. Among all Mexican

representatives of the genus this may be recognized at once by the

short and densely congested, very leafy inflorescence and stout,

densely leafy stems.

Ranunculus centellifolius Standl., sp. nov. — Herba perennis;

folia basalia longissime petiolata numerosa, petiolo usque 9 cm.

246 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

longo striato sparse pilis longissimis albis adscendentibus induto

vel fere omnino glabro; lamina rotundo-reniformis ca. 2.5 cm. longa

et fere aequilata apice late rotundata, basi profunde anguste cordata,

ubique grosse crenata, crenaturis utroque latere ca. 7 apice rotun-

datis, supra glabra, subtus pilis paucis longis albis induta vel fere

glabra; caules plures 2-3-flori erecti vel adscendentes ad 21 cm. longi

virides striati sparse longipilosi; folium caulinum vulgo 1 sessile vel

subsessile tripartitum, segmentis oblongo-linearibus usque 2.2 cm.

longis integris, interdum fere linearibus; flores longipedunculati,

sepalis hyalinis fere 5 mm. longis orbicularibus extus subsparse laxe

longipilosis; petala 5 obovato-rotundata 9 mm. longa apice late

rotundata basi late cuneato-rotundata glabra venosa laete lutea;

capitulum achaeniorum globosum, achaeniis numerosis glabris

turgidis laevibus ovoideis 2 mm. longis subobtusis stylo recto erecto

ca. 1 mm. longo terminatis. — Mexico: Abundant in meadows below

timber line, peak of Cerro Potosi, Municipio de Galeana, Nuevo

Leon, July 21, 1935, C. H. Mueller 2250 (type in Herb. Field Mus.).

Apparently a handsome plant because of its rather large but not

very numerous flowers, noteworthy for the rounded-reniform leaves,

suggestive of those of the genus Centella.

Ranunculus palmifolius Standl., sp. nov. — Herba perennis,

radicibus dense fasciculatis gracilibus sed carnosis; folia basalia

numerosa longipetiolata, petiolo ad 8.5 cm. longo sparse longipiloso;

lamina 3-4.5 cm. longa ut videtur plus minusve carnosa profunde

triloba, basi cuneata et longe decurrens, lobo centrali integro vel

breviter trilobo, lateralibus profundius trilobis, segmentis omnibus

linearibus vel oblongo-linearibus 2-3.5 mm. latis obtusis vel acutius-

culis; caules pauci crassiusculi ad 15 cm. alti multistriati sparse

longipilosi vel fere glabri plerumque 3-4-flori; folia caulina pauca,

inferiora usque 2.5 cm. longe petiolata, superiora sessilia, inferiora

basalibus similia, superiora plerumque tripartita, segmentis lineari-

bus; flores breviter pedunculati; sepala late oblonga obtusa ca. 5 mm.

longa extus sparse pilosa; petala 5 late oblonga fere 1 cm. longa apice

rotundata glabra ut videtur lutea; capitulum achaeniorum ovoideum,

achaeniis immaturis ovoideis numerosis dense hirtellis in stylum

longum erectum rectum sensim attenuatis. — Mexico: Vicinity of

Madera, Chihuahua, May-June, 1908, Edward Palmer 300 (type in

Herb. Field Mus.).

The petioles weather into numerous stiff, brown fibers that are

long-persistent at the base of the plant. The basal leaves are

distinctive, suggesting an open palm with outspread fingers.

STUDIES OF AMERICAN PLANTS , 247

Ranunculus pentodontus Standl., sp. nov.— Herba perennis;

folia basalia ut videtur pauca longipetiolata erecta, petiolo usque

9 cm. longo basi dilatato et vaginante dense pilis longissimis albidis

sericeo-piloso; lamina anguste oblanceolato-oblonga 7-9 cm. longa

1.5-2 cm. lata acuta, basin versus longe sensim cuneato-attenuata,

prope apicem vulgo 5-dentata, dentibus acutis, fere parallelonervia,

nervis ca. 5 utrinque prominentibus, supra viridis sparse longipilosa

vel fere glabra, subtus dense pilis longis albidis sericeo-pilosa; caules

ut videtur pauci erecti vel adscendentes graciles usque 50 cm. alti,

foliis caulinis paucis basalibus similibus sed angustioribus apice

vulgo tridentatis, sessilibus vel subsessilibus, dentibus interdum

linearibus et elongatis, foliis supremis brevibus anguste linearibus

integris; flores ca. 6 vel plures longipedunculati, pedunculis gracilibus

laxe tomentosis; sepala decidua ovalia hyalina ca. 6 mm. longa

apice rotundata extus pilis longissimis dense sericeo-pilosa; petala

5 laete lutea late cuneato-rotundato-obovata ca. 8 mm. longa

apice late rotundata glabra intus lucida; capitula achaeniorum

globosa 7 mm. longa, achaeniis numerosis suborbicularibus turgidis

sed ad margines paullo incrassatis compressis laevibus pallidis 2 mm.

longis apice rotundatis dense minute pilosulis, stylo vix ad 1 mm.

longo incurvo basi paullo incrassato. — Mexico: Memelichi, Rio

Mayo, Chihuahua, on gentle forest slope, pine woods, 2,250 meters,

September 17, 1936, Howard Scott Gentry 2787 (type in Herb. Field

Mus.). Quebrada Honda, Durango, May, 1906, Edward Palmer 220.

Noteworthy for the elongate, narrow leaves, usually 5-dentate

near the apex, and with a distinctive nervation that appears at first

glance to be parallel.

LAURACEAE

Litsea Tharpiana Standl., sp. nov. — Ut videtur dense ramosa,

ramis vetustioribus nigrescentibus, novellis cinnamomeis subtereti-

bus densissime brunneo-tomentellis, internodiis brevibus; folia parva

breviter petiolata coriacea, petiolo 3-4 mm. longo tomentello;

lamina ambitu variabilis late ovata, rotundo-ovata vel rare fere

orbicularis 1.5-3 cm. longa 1.5-2.3 cm. lata, apice acutiuscula usque

rotundata, basi late rotundata vel subcordata, supra in sicco cinereo-

viridis sublucida puberula vel glabrata, reti venularum prominula et

minute reticulata, subtus pallida glauca densiuscule pilosulo-tomen-

tella, costa gracili prominente, nervis lateralibus utroque latere ca. 6

angulo latiusculo adscendentibus arcuatis, venulis minutissime reti-

culatis atque retem prominentem efformantibus; capitula evoluta

non visa, juvenilia axillaria solitaria vel bina breviter pedunculata

248 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

recurva, pedunculo in statu fructifero 3 mm. tan turn longo; fructus

globosus apicatus 7 mm. diam. — Mexico: Hacienda Pablillo, Galeana,

Nuevo Leon, August 21, 1936, Mary Taylor 188 (type in Herb.

Field Mus.).

A well marked species, distinguished by the short, broad leaves

with unusually copious pubescence, especially on the lower surface.

The species is named for Professor B. C. Tharp, who has forwarded

to Field Museum for determination a vast quantity of valuable and

unusually interesting material, collected in Trans-Pecos Texas and

northeastern Mexico.

CRUCIFERAE

Lepidium macrum Standl., sp. nov. — Herba annua(?) erecta

ca. 30 cm. alta, caulibus infra inflorescentiam simplicibus gracilibus

rigidulis teretibus ubique subsparse pilis parvis stellatis sessilibus

indutis, subdense foliatis; folia basalia non visa, caulina sessilia

lineari-oblanceolata internodiis longiora plerumque 1-2.5 cm. longa

usque 4 mm. lata obtusa, basin versus longe attenuata, superi-

oribus minoribus, remote paucidentata vel subintegra utrinque sub-

sparse stellato-pilosula; racemi pauci paniculati usque 10 cm. longi

laxe multiflori, pedicellis rectangule patentibus 4-7 mm. longis

stellato-puberulis; sepala ca. 1.5 mm. longa, petalis subaequilongis

angustis albis vel purpurascentibus; siliqua ovalis vel obovato-

ovalis 2.5 mm. longa et fere aequilata basi obtusa, apice truncata

vel subemarginata, subdense minute stellato-puberula, stylo gracili

0.5 mm. longo vel ultra. — Mexico: Rare among shrubs of the upper

canyons, Canon de Los Capulines, above San Enrique, Hacienda

San Jose" de Raices, Municipio de Derrumbadero, Nuevo Leon,

August 6, 1935, C. H. Mueller 2411 (type in Herb. Field Mus.).

ROSACEAE

Couepia calophlebia Standl., sp. nov. — Arbor 36-metralis,

ramulis crassiusculis teretibus rimosis cinereo-ferrugineis, novellis

dense adpresse arachnoideo-tomentosis, internodiis brevibus; folia

parva breviter petiolata rigide coriacea, petiolo crasso 5-7 mm. longo

adpresso-tomentoso; lamina elliptico-oblonga vel lanceolato-oblonga

5.5-8.5 cm. longa 2-3.5 cm. lata longiacuminata, basi acuta vel

obtusa, supra in sicco lucida glabra, costa nervisque plus minusve

impressis, venis obsoletis, subtus albida ubique tomento arete ad-

presso araneoso obtecta, costa gracili elevata, nervis lateralibus

utroque latere ca. 8 prominentibus gracilibus angulo semirecto

adscendentibus subarcuatis marginem fere attingentibus, venulis

STUDIES OF AMERICAN PLANTS 249

prominentibus transversis parallelis et arete reticulatis connexis;

flores albi spicati, spicis sessilibus densissime multifloris foliis vulgo

brevioribus, rhachi crassa dense fulvo-sericea, bracteis fulvo-sericeis

ad 3 mm. longis deciduis; calycis tubus lineari-turbinatus 6 mm.

longus extus ut sepala densissime fulvo-sericeus, sepalis 5-6 mm.

longis oblongis obtusis; petala sepalis paullo longiora late oblonga

glabra apice rotundata; stamina numerosa glabra sepalis duplo

longiora; ovarium densissime fulvo-hirsutum. — Brazil: State of

Amazonas, near mouth of Rio Embira, a tributary of Rio Tarauaca,

on terra firma, June 19, 1933, B. A. Krukoff J^.913 (type in Herb.

Field Mus.).

Couepia Dahlgrenii Standl., sp. nov. — Ramuli crassi teretes

sordido-ochracei sat dense foliati, novellis dense albido-araneoso-

tomentosis; stipulae ferrugineae lineares ca. 3 mm. longae extus

tomentosae subpersistentes; folia parva brevissime petiolata rigide

coriacea, petiolo crasso vix ultra 2 mm. longo tomentoso; lamina

late ovalis vel rotundato-ovata, interdum fere orbicularis, 2-4.5 cm.

longa 1.5-2.5 cm. lata, apice obtusa vel late obtusa, interdum sub-

acuta, mucronato-apiculata, basi late rotundata vel interdum sub-

cordata, supra opaca laxe sparse albido-tomentosa, costa nervisque

obscuris, subtus grisea tomento subdenso laxo araneoso induta, costa

gracili elevata, nervis lateralibus utroque latere ca. 6 angulo lato

adscendentibus teneris prominulis subarcuatis, venis tomento

occultis; inflorescentia thyrsiformi-paniculata, interdum fere race-

mosa, breviter pedunculata, 7-11 cm. longa ad 5 cm. basi lata,

rhachi crassa densissime puberulo-tomentosa, floribus plerumque in

cymas paucifloras dispositis, interdum racemosis, bracteis parvis

lanceolato-oblongis deciduis, pedicellis crassis plerumque brevibus

interdum ad 7 mm. longis dense puberulo-tomentulosis; calycis

tubus 5-6 mm. longus clavatus in sicco striatus dense ut sepala

puberulo-tomentulosus; sepala ovalia vel oblongo-ovalia 4.5 mm.

longa obtusa intus dense sericea; stamina ca. 30, filamentis glabris;

fructus juvenilis ovalis ca. 9 mm. longus araneoso-tomentosus apice

rotundatus. — Brazil: Campo Major, State of Piauhy, in 1935,

B. E. Dahlgren 986 (type in Herb. Field Mus.).

Related to C. Martiana Hook, f., which has a shorter inflores-

cence and relative narrow and elongate leaves.

Couepia habrantha Standl., sp. nov. — Arbor 7.5 m. alta,

ramulis crassiusculis, novellis subangulatis ochraceis araneoso-

tomentosis vel glabratis, internodiis brevibus; folia inter minora

250 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

breviter petiolata rigide coriacea, petiolo crasso ca. 7 mm. longo

tomentoso; lamina oblonga 6-10 cm. longa 2.5-3.8 cm. lata abrupte

breviter obtuso-acuminata, basi acuta, supra in sicco brunnescens

lucida primo laxe tomentosa sed cito glabrata, costa prominula,

nervis obscuris subimpressis, subtus rufescens tomento laxo adpresso

araneoso ubique induta vel serius glabrata, costa gracili elevata,

nervis lateralibus utroque latere ca. 17 angulo latiusculo divergen-

tibus teneris prominulis, venulis obsoletis; inflorescentia spicata

terminalis densissime multiflora 3-4.5 cm. longa subsessilis, rhachi

crassa dense breviter velutino-pilosa, floribus arete sessilibus, bracteis

ovatis vel oblongis fere ad 1 cm. longis dense sericeis; calycis tubus

8 mm. longus oblongo-turbinatus extus dense subadpresse sericeo-

pilosulus, sepalis late ovatis obtusis 4 mm. longis intus glabris; petala

sepalis paullo longiora praeter apicem pilosulum glabra; stamina

numerosa ca. 1 cm. longe exserta, filamentis glabris; ovarium ut

stylus basi villosum. — Brazil: State of Amazonas, Humayta, between

Monte Christo and Santa Victoria on Rio Ipixuna, margin of river,

November, 1934, B. A. Krukoff 7252 (type in Herb. Field Mus.;

duplicate in herb. N. Y. Bot. Gard.).

Well marked by the short and very dense inflorescence, with

large but deciduous bracts.

Couepia Krukovii Standl., sp. nov. — Arbor 6-15-metralis,

ramulis crassis subteretibus rimosis ferrugineo-ochraceis vel fuscis,

internodiis brevibus, densissime pilis brevissimis adpressis vel ad-

scendentibus fulvis pilosis; stipulae persistentes paullo ultra 1.5 cm.

longae lineari-attenuatae adpresso-pilosulae; folia inter maxima

brevissime petiolata subcoriacea, petiolo crasso 3-6 mm. longo

dense adpresse tomentuloso; lamina anguste oblonga 22-33 cm. longa

5-8 cm. lata apice rotundata et abrupte breviter apiculato-acu-

minata vel angustata atque acuminata, basi anguste rotundata,

supra in sicco vix lucida, in juventute ut videtur laxe araneoso-

tomentosa sed cito glabrata, costa prominente, nervis venulisque

vix prominulis, subtus fere concolor primo arete pilis longis laxis

pallidis araneoso-tomentosa sed cito glabrata vel fere omnino glabra,

costa gracili elevata, nervis lateralibus utroque latere 19-23 angulo

lato adscendentibus prominentibus teneris fere rectis prope marginem

arcuato-conjunctis, venulis prominulis laxe reticulatis; inflorescentia

terminalis vel lateralis spicata dense pauciflora sessilis, rhachi ad

2.5 cm. longa angulata dense breviter subpatenti-pilosa, floribus

arete sessilibus magnis, bracteis ca. 8 mm. longis adpressis persis-

tentibus late ovatis acutis vel acuminatis extus dense sericeis cari-

STUDIES OF AMERICAN PLANTS 251

natis; calycis tubus cylindraceus 2.5 cm. longus 4 mm. crassus

subcurvus extus sicut sepala densissime pilis brevibus fulvis subpaten-

tibus vel adpressis pilosulo-tomentosus, sepalis rotundato-ovatis vel

late ovalibus fere 1 cm. longis obtusis patentibus intus dense minute

sericeis; stamina numerosissima glabra fere 3 cm. longa; stylus basin

versus dense longivillosus. — Brazil: State of Amazonas, Humayta,

near Tres Casas, on restinga alta, September 22, 1934, B. A. Krukoff

6208 (type in Herb. Field Mus.; duplicate in herb. N. Y. Bot. Gard).

Manicore, near Bella Vista, September, 1934, Krukoff 6007.

The very large, long and narrow leaves are distinctly unlike those

of any other Brazilian species.

Couepia latifolia Standl., sp. nov. — Arbor 15-metralis, ramulis

gracilibus longitrorsum rugosis ferrugineis glabratis; folia magna

brevissime petiolata tenuia vix coriacea, petiolo crasso ad 1 cm. longo

glabrato; lamina ovalis vel oblongo-ovalis 17-24 cm. longa 7.5-12 cm.

lata, apice rotundata vel obtusa et breviter obtuse apiculato-acu-

minata, basi obtusa vel late rotundata, supra in sicco lucida cinereo-

viridis glabra, costa prominente, nervis subimpressis, venis vix

prominulis, subtus paullo pallidior sub oculo ut videtur glabra sed

vere tomento fere microscopico arete adpresso pallido plus minusve

induta, costa gracili elevata, nervis lateralibus utroque latere ca. 17

angulo lato divergentibus gracilibus prominentibus subarcuatis juxta

marginem arcuato-conjunctis, venulis prominulis laxe reticulatis;

inflorescentia non visa; calycis tubus 1.5 cm. longus lineari-clavatus

extus densissime adpresse cinnamomeo-tomentulosus interdum valde

curvus, sepalis oblongis recurvis ca. 1 cm. longis extus densissime

tomentosis obtusis; petala sepalis subaequilonga glabra; stamina

perplurima glabra; fructus oblongus teres glaber vel glabratus 3-4.5

cm. longus 1-1.5 cm. diam. apice anguste rotundatus. — Brazil:

State of Amazonas, Manicore, near Bella Vista, restinga alta,

September, 1934, B. A. Krukoff 6005 (type in Herb. Field Mus.;

duplicate in herb. N. Y. Bot. Gard.).

Hirtella Duckei Huber, Bol. Mus. Goeldi 6: 74. 1910.— The

following recent Brazilian collections have been seen: Amazonas,

Paranagua, Municipality Teffe, on terra firma, a tree of 6 meters,

Krukoff 4557. Amazonas, Humayta, near Livramento, on terra

firma, a tree of 6 meters, Krukoff 6834-

Hirtella egensis Fritsch, Ann. Hofmus. Wien 5: 10. 1890.—

A single recent collection agrees exactly with the original material,

which was collected at Ega: Mata do Cachoeira, Maracassum6

252 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

River region, Maranhao, a tree of 13 meters, the trunk 18 cm. in

diameter, R. Froes 1899.

Hirtella physophora Mart. & Zucc. Abh. Akad. Muenchen 10:

374. 1832.— The type was collected by Spruce at Barra. The

following Brazilian collections are conspecific: Amazonas, Humayta,

near Livramento, on terra firma, a tree of 6 meters, Krukoff 6874.

Amazonas, Sao Paulo de Olivenca, on high land, a shrub of 4.5

meters, the trunk 5 cm. in diameter, the flowers white, Krukoff 8190.

Hirtella purusana Huber, Bol. Mus. Goeldi 6: 72. 1910.— A

single recent Brazilian collection of this well marked species has

been examined: Amazonas, Humayta, near Livramento, on terra

firma, a shrub of 5.5 meters, Krukoff 6983.

Hirtella racemosa Lam. var. oblongifolia (DC.) Standl., comb,

nov. H. oblongifolia DC. Prodr. 2: 529. 1825. H. americana var.

oblongifolia Benth. in Mart. Fl. Bras. 14, pt. 2: 34. 1867.— This

variety seems to be common in the upper Amazon Valley. In general

appearance, particularly in leaf form, it is so unlike the more wide-

spread forms of H. racemosa that it may perhaps deserve the specific

rank given it by De Candolle.

Hirtella rasa Standl., sp. nov. — Arbor 6-27-metralis, ramulis

gracilibus teretibus ferrugineis pallido-lenticellatis primo sparsissime

pilis parvis subadpressis pallidis pilosulis cito glabratis, internodiis

brevibus vel paullo elongatis; folia modica vel majuscula breviter

petiolata subcoriacea, petiolo crassiusculo 5-7 mm. longo strigilloso;

lamina elliptico-oblonga vel oblonga, rare ovali-elliptica 11-13 cm.

longa 4-6.5 cm. lata acuta vel breviter acuminata, apice ipso obtuso,

basi acuta ad rotundata et saepe subito breviter contracta, supra

in sicco lucida tactu asperula, ad venas sparse minute hispidula vel

fere omnino glabra, costa ut nervis prominula, venulis prominulis

arete reticulatis, subtus vix pallidior asperula sparse minute strigil-

loso-scaberula vel fere glabra, costa gracili elevata, nervis lateralibus

utroque latere ca. 9 angulo latiusculo adscendentibus teneris arcuatis,

venulis vix prominulis arete reticulatis; inflorescentia terminalis

corymboso-paniculata 8-19 cm. longa et fere aequilata sessilis vel

breviter pedunculata solemniter ramosa laxe multiflora, ramis valde

adscendentibus rigidis pilis miriutis adscendentibus vel adpressis

cinereis vel fulvis dense pilosulis, bracteis bracteolisque parvis late

ovatis obtusis deciduis eglandulosis, floribus sessilibus vel breviter

pedicellatis; calyx densissime minute fulvo- vel cinereo-sericeus,

tubo turbinato fere 3 mm. longo basi acuto, sepalis rotundo-ovalibus

STUDIES OF AMERICAN PLANTS 253

aequilongis apice late rotundatis reflexis; petala lata alba glabra

apice rotundata fere 4 mm. longa; stamina 5, filamentis purpureis

glabris elongatis; ovarium densissime patenti-pilosum. — Peru: On

river bank, Juanjui, Dept. San Martin, Alto Rio Huallaga, 400-800

meters, February, 1936, G. King 4249 (type in Herb. Field Mus.).—

Brazil: Territory of Acre, near mouth of Rio Macauhan, a tributary

of Rio Yaco, on terra firma, August, 1933, B. A. Krukoff 5525.

In Hooker's account of this genus in the Flora Brasiliensis, the

present plant runs in the key at once to H. scabra Benth., a species

of the Guianas and the upper Amazon. That differs conspicuously in

having leaves only half as large, as well as in numerous minor details.

Hirtella Sprucei Benth. in Mart. Fl. Bras. 14, pt. 2: 30. 1867.

—One recent Brazilian collection of this apparently rare species has

been seen: Amazonas, near mouth of Rio Embira, on terra firma,

a tree of 9 meters, Krukoff 4684-

Licania anisophylla Standl., sp. nov. — Arbor 22-metralis,

trunco 23 cm. diam., ut videtur dense ramosa, ramulis crassiusculis

teretibus rimosis cinnamomeis, novellis dense adpresse minute fulvo-

tomentulosis, internodiis brevibus; folia modica breviter petiolata

rigide coriacea, petiolo crasso 4-6 mm. longo primo dense minute

tomentuloso; lamina forma insigniter variabilis elliptico-oblonga ad

elliptica vel elliptico-rotundata 4.5-10 cm. longa 3-7 cm. lata apice

obtusa atque abrupte breviter obtuso-acuminata vel subcaudato-

acuminata, interdum rotundata et apiculato-acuminata, basi obtusa

vel acutiuscula, interdum rotundata, supra lucida glabra, costa

venisque manifestis sed non elevatis, venis obsoletis, subtus brunnes-

cens, ubique tomento adpresso lanato subferruginoso obtecta, costa

crassiuscula elevata, nervis lateralibus utroque latere 5-6 prominen-

tibus arcuatis prope marginem obscure conjunctis angulo semirecto

adscendentibus, venulis prominulis sed tomento fere occultis arete

reticulatis; inflorescentia paniculata foliis longior, ramis rigidis

angulo ca. semirecto adscendentibus crassis densissime minute

ferrugineo-tomentosis, floribus arete sessilibus solitariis vel secus

ramos remote aggregatis, bracteis minutis vix ad 1 mm. longis late

ovatis persistentibus; calyx fructifer vix ultra 2 mm. longus minute

fulvo-adpresso-pilosulus, tubo intus non araneoso, lobis tubo brevi-

oribus rotundato-ovatis obtusis intus minute sericeis; fructus juvenis

clavato-oblongus ca. 8 mm. longus apice rotundatus subdense minute

adpresso-pilosulus. — Brazil: State of Amazonas, Sao Paulo de

Olivenca, near Palmares, terra firma, low land, September-October,

254 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

1936, B. A. Krukoff 8451 (type in herb. N. Y. Bot. Gard.; photo,

in Herb. Field Mus.).

Related to L. micrantha Miq., which also occurs in the Amazon

Valley, but differing obviously in the shape, venation, and indument

of the leaves.

Licania aspera Standl., sp. nov. — Arbor 15-metralis, trunco

20 cm. diam., ramulis crassiusculis teretibus primo densissime pilis

brevibus patentibus vel adscendentibus fulvis pilosis, internodiis

brevibus; folia majuscula breviter petiolata tenuiter coriacea, petiolo

crasso vix ad 7 mm. longo dense pilosulo-tomentoso; lamina oblonga

vel elliptico-oblonga ca. 20 cm. longa atque 8.5 cm. lata acuta vel

breviter acuminata, basi rotundata vel subtruncata, interdum sub-

cordata, supra in sicco grisea sublucida ubique dense pustulato-

punctata, tactu asperrima, costa elevata, nervis venisque manifestis

sed vix prominulis, subtus albida tomento adpresso araneoso dense

induta, costa gracili elevata, nervis lateralibus utroque latere ca.

10 angulo semirecto adscendentibus teneris fere rectis prominentbus

prope marginem irregulariter arcuato-conjunctis, venulis insigniter

prominentibus arete reticulatis; paniculae axillares et terminales

foliis breviores laxe pauciramosae sessiles, ramis patentibus gracili-

bus densissime pilis patentibus brevibus fulvis pilosis, floribus secus

ramos solitariis vel subaggregatis sessilibus, bracteis patentibus

oblongo-lanceolatis acuminatis ad 3 mm. longis persistentibus extus

pilosulis intus ferrugineis glabris; calyx subcampanulatus 2 mm.

longus extus densissime patenti-pilosulus, lobis tubo paullo longiori-

bus late ovatis obtusis intus breviter pilosis; antherae exsertae. —

Brazil: State of Para, Cajutuba, Tapajos region, on high land,

January 18, 1932, R. C. Monteiro da Costa 279 (type in Herb. Field

Mus.).

Vernacular name Pajura-rana. Easily recognized by the pustu-

late-scabrous upper surface of the leaves.

Licania celativenia Standl., sp. nov. — Arbor 6-33-metralis,

ramulis crassis ferrugineis vel fuscis teretibus rimosis glabris, inter-

nodiis brevibus; folia modica petiolata rigide coriacea, petiolo crasso

1-2 cm. longo glabro; lamina obovato-oblonga 6-11.5 cm. longa

3.5-6 cm. lata, apice late rotundata et vulgo leviter emarginata,

basin acutam versus paullo angustata, supra in sicco lucida glabra,

costa nervisque manifestis sed non elevatis, venis obsoletis, subtus

brunnescens glabra vel primo sparse minutissime puberula, sub-

lucida, costa crassiuscula prominente, nervis lateralibus utroque

STUDIES OF AMERICAN PLANTS 255

latere ca. 9 angulo semirecto adscendentibus teneris prominulis

subarcuatis vel fere rectis prope marginem irregulariter arcuato-

conjunctis, venis obsoletis; inflorescentia fructifera paniculata fere

corymbiformis laxe multiflora foliis longior, ramis crassis ferrugineis

subangulatis sparse breviter patenti-pilosis, floribus sessilibus;

fructus subglobosus (immaturus) et ca. 2 cm. longus, apice rotund-

atus dense puberulo-tomentulosus et sparse hirsutus, vel interdum

3 cm. longus 1.5 cm. latus oblongo-ovoideus et apice acutatus. —

Brazil: State of Amazonas, Humayta, on plateau between Rio

Livramento and Rio Ipixuna, on campinarana, November, 1934,

B. A. Krukoff 7182 (type in Herb. Field Mus.; duplicate in herb.

N. Y. Bot. Card.). Also No. 7120 from the same region.

The species is well marked by the general lack of pubescence

on the vegetative parts, and by the suppressed veins of the leaves.

The two collections cited exhibit slight differences, particularly in

the form of the fruit, but they probably represent a single species.

Licania Dahlgrenii Standl., sp. nov. — Ramuli graciles teretes

ferruginei dense lenticellati, novellis laxe araneoso-tomentosis,

glabrescentibus, internodiis brevibus; stipulae lineares ad 8 mm.

longae ferrugineae; folia parva breviter petiolata tenuiter coriacea,

petiolo crasso vix ad 4 mm. longo laxe tomentoso; lamina oblonga

vel ovato-oblonga, interdum ovata, 5-8.5 cm. longa 2-4.5 cm. lata

obtusa, basi inaequaliter obtusa vel subrotundata, supra in sicco

lucida glabra, costa ut nervis venisque prominula vel prominente,

subtus fere concolor, primo laxe araneoso-tomentosa cito glabrata,

costa gracili elevata, nervis lateralibus utroque latere ca. 9 teneris

angulo latiusculo adscendentibus arcuatis prope marginem irregu-

lariter arcuato-cinjunctis, venulis prominentibus subarcte reticu-

latis; paniculae terminales et axillares sessiles laxe multiflorae

magnae usque 18 cm. longae, ramis gracilibus subpatentibus densius-

cule griseo-tomentulosis, floribus sessilibus plerumque in fascicules

trifloros brevissime pedunculatos dispositis, fasciculis secus ramos

remote insertis, bracteis minutis minus quam 1 mm. longis triangu-

laribus intus glabris; calyx 2.5 mm. longus extus intusque griseo-

tomentulosus, lobis ovatis obtusis tubo paullo longioribus; stamina

10 calyce plus quam duplo longiora, filamentis glabris. — Brazil:

State of Piauhy, Pedro Segundo, in 1935, B. E. Dahlgren 876 (type

in Herb. Field Mus.).

Licania elliptica Standl., sp. nov. — Arbor 23-metralis, ramulis

gracilibus teretibus ochraceis vel subferrugineis rimosis et lenti-

256 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

cellis magnis pallidis notatis, novellis glabris, internodiis brevibus;

folia modica vel majuscula brevissime petiolata coriacea, petiolo

crassiusculo ca. 5 mm. longo glabro; lamina elliptica vel oblongo-

elliptica 12-14.5 cm. longa 6-8 cm. lata, apice obtusa et abrupte

acuminata vel cuspidato-acuminata, iriterdum apice late rotundata

et apicata, basi acuta, supra in sicco subjucida glabra, costa ner-

visque prominulis, venulis manifestis sed vix prominulis, subtus

juventute glauca et minutissime dense albo-tomentulosa, serius

glabrata, costa gracili prominente, nervis lateralibus utroque latere

ca. 8 angulo latiusculo adscendentibus prominentibus arcuatis

marginem fere attingentibus, venulis inconspicuis laxe reticulatis;

inflorescentiae axillares et terminales paniculatae laxe multiflorae

foliis longiores vel breviores, ramis gracilibus viridibus glabris vel

sparse puberulis, floribus sessilibus solitariis vel remote aggregatis,

bracteis minutissimis; alabastra globoso-obovoidea apice rotundata

extus minute fulvo-tomentulosa; calyx 2 mm. longus, lobis tubo

multo brevioribus obtusis intus tomentellis; petala nulla; stamina

vulgo 3. — Brazil: State of Amazonas, near mouth of Rio Embira,

a tributary of Rio Tarauaca, June 27, 1933, on varzea land, B. A.

Krukoff SOU (type in Herb. Field Mus.; duplicate in herb. N. Y.

Bot. Card.).

Licania Krukovii Standl., sp. nov. — Arbor 15-metralis, ramulis

crassis teretibus densissime pilis patentibus vel adscendentibus

fulvis vel brunneis pilosis vel subtomentosis, internodiis brevibus;

stipulae persistentes petiolo adnatae late ovatae acutae ad 1 cm.

longae extus dense fulvo-pilosae; folia majuscula breviter petiolata

subcoriacea, petiolo crasso vix ad 7 mm. longo dense piloso-tomen-

toso; lamina oblonga vel lanceolato-oblonga 14-21 cm. longa 5-10

cm. lata vulgo longiacuminata, basi subrotundata ad acutiuscula,

supra in sicco fusco-brunnescens sublucida, primo sat dense fulvo-

hispidula, cito glabrata, costa gracili prominente, nervis manifestis

subimpressis, venulis obscuris vel interdum subimpressis, subtus

pallidior ubique dense molliter fulvo-hispidula, costa crassiuscula

elevata, nervis lateralibus utroque latere ca. 13 elevatis gracilibus

angulo latiusculo adscendentibus juxta marginem arcuato-con-

junctis, venulis prominulis laxe reticulatis; paniculae terminales et

axillares laxe pauciramosae foliis breviores, ramis crassis densissime

brunneo-piloso-tomentosis, bracteis extus dense fulvo-pilosulis lance-

olatis vel fere subulatis, infimis ad 2 mm. longis, floribus arete

sessilibus secus rhachin remote aggregatis; calyx ca. 2 mm. longus

extus intusque dense breviter velutino-pilosulus, lobis tubo multo

STUDIES OF AMERICAN PLANTS 257

brevioribus late ovatis acutiusculis; petala 5 minuta; stamina ca. 5.

—Brazil: State of Amazonas, near mouth of Rio Embira, a tributary

of Rio Tarauaca, on terra firma, June 28, 1933, B. A. Krukoff 5070

(type in Herb. Field Mus.; duplicate in herb. N. Y. Bot. Gard.).

Closely related to L. intrapetiolaris Spruce, which has glabrous

leaves and branches. Also related are L. latifolia Benth. and L.

obovata Benth., in both of which species the leaves are rounded at

the apex.

Licania oblongifolia Standl., sp. nov. — Arbor 16-33-metralis,

trunco 30 cm. et ultra diam., ramulis crassis subteretibus plus

minusve ferrugineis rimosis et lenticellis numerosis parvis pallidis

conspersis glabris, internodiis brevibus; stipulae petiolo adnatae,

parte libera filiformi 5 mm. longa; folia mediocria breviter petiolata

tenuiter coriacea, petiolo glabro crasso usque 1 cm. longo supra

canaliculate; lamina in sicco interdum complicata anguste oblonga

vel interdum lineari-oblonga 11-14 cm. longa 2.5-5 cm. lata acuta

vel breviter obtuso-acuminata, basin versus vix angustata, basi

rotundata vel obtusissima, glabra, supra in sicco brunneo-fuscescens

sublucida, costa prominente, nervis prominulis, venis manifestis sed

vix elevatis, subtus concolor, costa gracili elevata, nervis lateralibus

utroque latere ca. 11 angulo latiusculo adscendentibus prominulis

teneris prope marginem irregulariter arcuato-conjunctis, venulis

prominulis laxiuscule reticulatis; inflorescentia (in statu fructifero

tantum visa) ut videtur parva et pauciflora, ramis glabris vel gla-

bratis crassis; fructus maturus fere sessilis ovoideo-globosus 5.5 cm.

longus 4.5 cm. latus, basi et apice rotundatus, ferrugineus, ubique

in sicco grosse reticulato-rugosus glabratus. — Brazil: State of

Amazonas, Humayta, near Livramento, on Rio Livramento, on

terra firma, October-November, 1934, B. A. Krukoff 6812 (type

in Herb. Field Mus. ; duplicate in herb. N. Y. Bot. Gard.). Humayta,

on plateau between Rio Livramento and Rio Ipixuna, in cipoal,

November, 1934, Krukoff 7216. State of Matto Grosso, near

Tabajaza, upper Machado River region, on varzea land, Novem-

ber-December, 1931, Krukoff 1452.

Vernacular name Castanha (Matto Grosso). Marked by the

narrowly oblong leaves with parallel sides, similar to those of L.

macrophylla Benth. but much smaller.

Licania pallida Britton, Bull. Torrey Club 17: 9. 1890. L.

Britteniana Fritsch, Oesterr. Bot. Zeitschr. 42: 6. 1892. Moquilea

elata Pilger, Notizbl. Bot. Gart. Berlin 6: 136. 1914.

258 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Licania pallida was renamed unnecessarily by Fritsch, there

being no older valid homonym. L. pallida Spruce was published by

Hooker f. merely in synonymy in the Flora Brasiliensis. There

is also an L. pallida (Hook, f.) Kuntze, published in 1891, based

upon Moquilea pallida Hook, f., and later renamed Licania Hookeri

by Fritsch. In renaming Britton's species, Fritsch evidently mis-

understood the name of its author. Apparently synonymous with

L. pallida Britton is Moquilea elata Pilger, as indicated by a photo-

graph of the Berlin type and material identified with it at Berlin

by Macbride. The following material of this species has been

examined by the writer.

Bolivia: Junction of rivers Beni and Madre de Dios, Rusby 2442,

type collection of L. pallida Britton. — Peru: Puerto Arturo, Dept.

Loreto, 200 meters, Williams 5064- — Brazil: Alto Acre, Seringal

Sao Francisco, Ule 9446 (type of M. elata; photo, in Herb. Field

Mus.). Amazonas, Sao Paulo de Olivenca, near Palmares, on high

land, a tree of 27 meters, the trunk 25 cm. in diameter, Krukoff 8507;

in low land, high forest, a tree of 21 meters, the trunk 20 cm. in

diameter, Krukoff 8445. Amazonas, Humayta, near Tres Casas, on

varzea land, a tree of 50 meters, Krukoff 6139; on restinga alta, a

tree of 36 meters, local name "pajura," Krukoff 6306. Territory

of Acre, near mouth of Rio Macauhan, on terra firma, a tree of 40

meters, Krukoff 5635. Amazonas, near mouth of Rio Embira, on

varzea land, a tree 23 meters high with white flowers, Krukoff 5165.

Licania riparia (Gleason) Standl., comb. nov. Moquilea riparia

Gleason, Bull. Torrey Club 61: 192. 1934.

Licania stenocarpa Standl., sp. nov. — Arbor 16-metralis, trunco

15 cm. diameter, ut videtur dense ramosa, ramulis gracilibus teretibus

ferrugineis vel fuscis rimosis, novellis sat dense tomentulosis, inter-

nodiis brevibus; stipulae breviter petiolo adnatae filiformes usque

7 mm. longae; folia parva breviter petiolata tenuiter coriacea, petiolo

crassiusculo 6-8 mm. longo tomentuloso; lamina oblongo-elliptica

6.5-8.5 cm. longa 3-4.3 cm. lata abrupte anguste obtuso-acuminata,

basi obtusa, supra in sicco lucida glabra, costa elevata, nervis planis

vel prominulis, venis manifestis sed vix elevatis, subtus paullo palli-

dior tomento minuto adpresso subfulvo dense induta, costa gracili

elevata, nervis lateralibus utroque latere ca. 8 angulo latiusculo

adscendentibus arcuatis teneris prominentibus prope marginem

irregulariter arcuato-conjunctis, venulis prominulis crassiusculis

arctissime reticulatis; paniculae (in statu fructifero tantum visae)

STUDIES OF AMERICAN PLANTS 259

parvae foliis vulgo breviores pauciramosae, ramis gracilibus tomen-

tulosis et pilosulis remotifloris, floribus sessilibus, bracteis persis-

tentibus interdum reflexis triangularibus ca. 1 mm. longis acutis;

calyx sub fructum persistens ca. 2 mm. longus extus dense minute

adpresso-tomentulosus, fauce longipilosus, lobis brevissimis obtusis;

fructus immaturus anguste oblongus teres 14 mm. longus 4 mm.

latus sessilis apice anguste rotundatus glaber. — Brazil: State of

Amazonas, Sao Paulo de Olivenca, near Palmares, terra firma, high

land, September-October, 1936, B. A. Krukoff 8553 (type in herb.

N. Y. Bot. Gard.; fragment in Herb. Field Mus.).

Related, perhaps, to L. emarginata Spruce, whose leaves are

glabrous and not or scarcely acuminate.

Parinarium pilosum Standl., sp. nov. — Arbor 33-metralis,

ramulis crassiusculis fuscis vel ferrugineis rimosis, novellis dense

pilis patentibus vel adscendentibus rigidulis brunnescentibus vel

fulvis pilosis, internodiis brevibus vel subelongatis; stipulae fer-

rugineae lineares ad 1.5 cm. longae adpresso-pilosae persistentes;

folia modica breviter petiolata rigide coriacea, petiolo crasso 6-10

mm. longo dense patenti-piloso; lamina oblongo-elliptica, oblonga

vel ovali-elliptica 8.5-14 cm. longa 3.5-7.5 cm. lata, apice obtusa

vel rotundata, interdum subemarginata, rare breviter acuminato-

apicata, basi rotundata vel obtusa, marginibus plus minusve recurvis,

supra lucida ad costam prominulam fulvo-hispidula, aliter glabra,

nervis subimpressis, venis fere obsoletis, subtus ubique sparse molliter

pilis longiusculis fulvis patentibus pilosa, costa gracili elevata, nervis

lateralibus utroque latere ca. 12 elevatis angulo latiusculo adscen-

dentibus arcuatis marginem fere attingentibus, venulis solemniter

elevatis et arctissime reticulatis; inflorescentia non visa; fructus

ovoideo-globosus ca. 6 cm. longus et aequilatus basi et apice rotun-

datus ubique tomento fulvo subvelutino densissime obtectus. —

Brazil: State of Amazonas, Humayta, on plateau between Rio

Livramento and Rio Ipixuna, on campinarana alta, November, 1934,

B. A. Krukoff 7109 (type in Herb. Field Mus.; duplicate in herb.

N. Y. Bot. Card.).

It is unsatisfactory to have no flowering material for preparation

of a description, but the tree is clearly unlike any species known

from Brazil, as indicated by the shape and indument of the leaves.

Potentilla exsul Standl., sp. nov. — Perennis humilis, rhizomate

crasso apice basibus foliorum vetustorum dense obtecto; folia

basalia pauca 5-foliolata vel rare 3-foliolata, petiolo 2.5-5.5 cm.

260 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

longo gracili pilis longis albis patentibus vel adscendentibus dense

piloso; foliola inaequalia, infima minora, cuneato-oblonga 2-3.5 cm.

longa 7-12 mm. lata, basin versus cuneato-angustata, apice late

rotundata, supra basin grosse crenata, crenaturis utroque latere 6

vel paucioribus, supra viridia sparse pilis rigidulis longis strigosa,

subtus dense longisericea atque albo-tomentosa; scapus vix folia

aequans ca. 4-florus gracilis longipilosus, versus basin bracteatus,

pedicellis gracilibus longipilosis usque 1.5 cm. longis; calyx extus

dense pilis longis albis subadpressis indutus, sepalis lanceolato-

oblongis 5-6 mm. longis acuminatis vel attenuato-acutis, bracteo-

lis lanceolato-oblongis sepala fere aequantibus; petala ut videtur

pallide lutea late obovata apice subtruncata glabra ca. 1 cm. longa.

— Mexico: Along mountain stream, near Mesa de Correo, Chi-

huahua, July 2, 1936, HardeLeSueur 663 (type in Herb. Field Mus.).

Potentilla Mexiae Standl., sp. nov. — Herba perennis plus

minusve caespitosa e radice longissima crassa sublignea nascens,

humilis, basibus foliorum vetustorum longe persistentibus; folia

basalia numerosa congesta parva, petiolis usque 2.5 cm. longis

gracilibus pilis longis adscendentibus albidis dense pilosis; foliola

5 oblongo-obovata vel cuneato-obovata 6-15 mm. longa 4-6 mm.

lata apice obtusa vel rotundata, basin versus plus minusve cuneato-

angustata, crenata, crenaturis utroque latere 3-4 ovatis obtusis,

supra griseo-viridia dense albido-strigosa, subtus fere concoloria

densius pilis longis strigosa et tomentosa; caules numerosi erecti vel

decumbentes vix ultra 7 cm. alti graciles dense pilis longis albis

adscendentibus pilosi, prope basin vulgo 1-foliati, bracteis superiori-

bus valde reductis et trifoliolatis, floribus paucis vulgo 3-5 cymam

parvam laxam efformantibus breviter pedicellatis; calyx extus dense

griseo-strigosus, sepalis 5 mm. longis ovato-oblongis acutis, bracteolis

oblongis obtusis sepalis paullo brevioribus; petala lutea sepalis

paullo longiora glabra apice subtruncata vel emarginata; achaenia

pauca laevia viridia ca. 1.3 mm. longa. — Mexico: Southwest of

Basuchil, District of Guerrero, Chihuahua, on dry, gravelly plateau,

forming small mats, May 18, 1929, Ynes Mexia 2542 (type in Herb.

Field Mus.). Majalca, Chihuahua, June 24, 1936, Harde LeSueur

655.

Potentilla leonina Standl., sp. nov. — Perennis humilis caespi-

tosa, radice apice incrassata atque basibus foliorum vetustorum

dense obtecta plus minusve lignosa; folia basalia numerosa 5-folio-

lata, petiolis usque 2.5 cm. longis dense pilis longissimis albis patenti-

bus vel adscendentibus pilosis; foliola cuneato-oblonga plerumque

STUDIES OF AMERICAN PLANTS 261

1.5-3 cm. longa atque 5-9 mm. lata, apice obtusa vel rotundata,

basin versus cuneato-angustata, crenata, crenaturis utroque latere

4-5 obtusis subadpressis, supra viridescentia subdense pilis longis

piloso-strigosa, subtus alba sat dense piloso-strigosa et densissime

tomentosa; caules pauci usque 11 cm. longi erecti vel decumbentes

pilis longis albis laxis adscendentibus pilosi infra medium 1-2-foliati,

bracteis inflorescentiae vulgo 3-foliolatis et valde reductis, floribus

paucis laxe cymosis, pedicellis gracilibus usque 1.5 cm. longis; calyx

extus dense pilis longis albis subadpressis pilosus, sepalis 7 mm.

longis attenuato-acutis ovato-oblongis, bracteolis lanceolato-ob-

longis obtusis sepalis fere aequilongis; petala fere obreniformia

pallide lutea ca. 1 cm. longa et aequilata profunde emarginata;

achaenia viridia laevia. — Mexico: Abundant in alpine meadows

above timber line, peak of Cerro Potosi, Municipio de Galeana,

Nuevo Leon, July 21, 1935, C. H. Mueller 221>2 (type in Herb.

Field Mus.).

Evidently this plant is closely related to P. Mexiae, but it

differs conspicuously enough in being substantially larger in all its

parts, particularly the flowers.

LEGUMINOSAE

Calliandra Gentry! Standl., sp. nov. — Frutex 3-5-metralis,

ramis gracilibus subteretibus dense pilis brevibus patenti-pilosis,

internodiis elongatis; stipulae 5 mm. longae persistentes dense

pilosae; folia majuscula longipetiolata, rhachi 2-4 cm. longa, pinnis

2-3-jugis 3.5-5.5 cm. longis; foliola plerumque 5-juga late obliquo-

ovalia vel late obovato-ovalia 1-2 cm. longa 6-12 mm. lata mem-

branacea, apice late rotundata vel truncata et brevissime apiculata,

basi valde obliqua late rotundata vel truncata et obscure trinervia,

supra viridia sparse adpresso-pilosula, nervis venisque obscuris,

subtus pallidiora dense pilis brevibus subadpresses rectis vel incurvis

pilosa; capitula axillaria vel racemum brevem terminale efformantia

staminibus exclusis ca. 1.5 cm. diam. globosa dense multiflora,

pedunculo gracili 2-5 cm. longo dense patenti-piloso basi bracteato,

bracteis oblongis viridibus ca. 5 mm. longis; bracteis capitulorum

oblongis viridibus glabris; calyx glaber 4 mm. longus fere ad basin

lobatus, lobis viridibus oblongis acutiusculis; corolla 6 mm. longa

glabra profunde lobata, lobis apice viridibus; stamina alba 3 cm.

longa. — Mexico: Guasaremos, Rio Mayo, Chihuahua, in canyon,

August 5, 1936, Howard Scott Gentry 2363 (type in Herb. Field

Mus.); a tall, slender shrub; flowers white, wilting with warmth.

262 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Huisiego, Rio Mayo, Chihuahua, in canyon, riparian, August 15,

1936, Gentry 2389; stamens greenish white, erect in the early morning.

Vernacular name Clavellino. Referable, apparently, to Britton

and Rose's group Formosae.

Desmodium Gentry! Standl., sp. nov. — Herbacea, caule

gracillimo subtereti glabro vel glabrato, internodiis brevibus-vel

elongatis; stipulae deciduae ca. 1 cm. longae brunneae striatae

ciliatae lineari-lanceolatae longe anguste attenuatae; folia majuscula

3-4 cm. longe petiolata, petiolo gracili striato glabro, rhachi 8-13

mm. longa glabra, stipellis linearibus ad 8 mm. longis, petiolulis

vix ad 2 mm. longis pilosulis; foliola 3 anguste lanceolato-oblonga

vel oblonga, rare elliptico-oblonga, plerumque 6-12 cm. longa atque

1.5-2.5 cm. lata, longe anguste attenuata, rarius acuta vel obtusa,

basi late rotundata, membranacea, supra in sicco laete viridia glabra

vel glabrata, venis prominulis laxe reticulata, subtus paullo palli-

diora, ad nervos sparse adpresso-pilosa vel glabra, costa nervisque

prominentibus gracillimis; flores racemosi, racemis 26 cm. longis

et ultra remote paucifloris, bracteis caducis lineari-lanceolatis ca.

5 mm. longis, rhachi gracili dense breviter uncinulato-pilosula, pedi-

cellis ad 4 mm. longis viscido-uncinulato-pilosulis; calyx pallide

viridis ca. 3 mm. longus fere glaber, lobis valde inaequalibus lance-

olato-triangularibus acuminatis; corolla 7 mm. longa glabra; legumen

2-2.5 cm. longum 3 mm. latum, brevissime stipitatum, utroque

margine sed superiore brevius rotundato-lobatum, articulis ca. 6

densissime viscido-uncinulato-hispidulis. — Mexico: Arroyo Hondo,

Sierra Charuco, Chihuahua, in pine flats, September 11, 1935,

Howard Scott Gentry 1749 (type in Herb. Field Mus.).

"Flowers yellowish white, with two green spots on the upper lip."

Desmodium lavanduliflorum Standl., sp. nov.— Herba pro-

cumbens, caule gracili elongate subtereti densissime pilis brevibus

uncinulatis viscidis piloso, internodiis elongatis; stipulae virides

membranaceae persistentes 12-15 mm. longae e basi late ovato-

cordatae abrupte longicaudatae dense pilis longis laxis pilosae; folia

longipetiolata, petiolo dense piloso, rhachi 1 cm. longa vel paullo

ultra, stipellis linearibus ca. 5 mm. longis, petiolulis ad 2 mm. longis

dense longipilosis; foliola 3 orbicularia vel rotundato-ovalia 2.5-4.5

cm. lata, apice late rotundata mucronata, basi late rotundata vel

subtruncata, membranacea, supra in sicco viridia dense bulboso-

punctata dense pilis longis laxis pilosa, subtus paullo pallidiora

similiter sed densius pilosa; flores racemosi, racemis simplicibus

STUDIES OF AMERICAN PLANTS 263

remote laxe pauc- vel multiflori longipedunculati usque 28 cm.

longi, rhachi dense glanduloso-pilosa, pedicellis fructiferis plerumque

1.5-2 cm. longis gracillimis patentibus vel adscendentibus, bracteis

caducis non visis; calyx ca. 4 mm. longus purpureo tinctus sparse

pilosulus vel glabratus, lobis valde inaequalibus acutis vel acuminatis;

corolla ca. 8 mm. longa, petalis glabris; legumen vix ultra 1 mm.

longe stipitatum 2.5-3.5 cm. longum 4 mm. latum utroque margine,

superiore paullo brevius, crenato-lobatum, articulis 5-6 oblique

rotundato-ovalibus densissime viscido-uncinato-pilosulis, stylo fere

5 mm. longo. — Mexico: Quicorichi, Rio Mayo, Chihuahua, in pine

forest, October 7, 1935, Howard Scott Gentry 1963 (type in Herb.

Field Mus.).

"Procumbent; flowers lavender."

Desmodium quercetorum Standl., sp. nov. — Herba ut videtur

erecta 60 cm. alta et ultra, caulibus gracilibus teretibus viridibus

dense pilis patentibus pallidis uncinulato-piloso, internodiis brevibus;

stipulae virides membranaceae persistentes nervosae e basi lance-

olate- vel ovato-cordata abrupte longiacuminatae vel cuspidatae

hispido-ciliatae, aliter glabrae; petiolus gracilis 5-7 mm. longus

pilosus, stipellis subulatis 3 mm. longis; foliolum 1 ovatum, ovato-

oblongum vel lanceolato-oblongum 3.5-7 cm. longum 1-3 cm. latum,

apice rotundatum et longe mucronatum, basi obtusum vel anguste

rotundatum, membranaceum, supra in sicco viride, tuberculato-

papillosum, sparse pilis longis albidis pilosum, venis prominulis

reticulatis, subtus fere concolor subdense pilis albidis subadpressis

pilosum; racemi paniculati laxe pauci- vel multiflori 7-23 cm. longi

pedunculati, floribus remotis, rhachi dense viscido-pilosa, bracteis

deciduis 5-8 mm. longis ovatis vel lanceolatis viridibus cuspidato-

attenuatis nervosis, pedicellis gracillimis plerumque 9-13 mm. longis

patentibus vel adscendentibus viscido-pilosis; calyx purpureus vix

ultra 2 mm. longus sparse pilosulus profunde lobatus, lobis inaequali-

bus acutis vel acuminatis; corolla 5-6 mm. longa, petalis glabris;

legumen fere sessile, in statu juvenili 2 mm. latum glabrum, utroque

margine fere aequaliter crenato-lobatum, articulis vulgo 4-5 oblique

orbicularibus isthmo angustissimo sejunctis. — Mexico: Guasaremos,

Rio Mayo, Chihuahua, on oak slopes, September 26, 1935, Howard

Scott Gentry 1867 (type in Herb. Field Mus.). Sierra Charuco, Rio

Mayo, Sonora, in canyon, September 10, 1935, Gentry 1720.

Flowers lavender. The plant belongs to the small number

of Desmodium species having unifoliolate leaves.

264 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Dialium guianense (Aubl.) Steud.— This widely distributed

tree of tropical America has been recorded as far north as Guatemala

and British Honduras. Specimens are now at hand from Mexico:

Fortune, Coatzacoalcos River, Veracruz, 30-50 meters, in 1937, L.

Williams 8448, 8936, 8647. Ubero, Oaxaca, 30-90 meters, Williams

9355, 9285. Local names Paqui or Guapaqui. A tall tree, 20-27

meters or more in height, usually with conspicuous buttresses.

Ormosia isthmensis Standl., sp. nov. — Arbor 20-27-metralis,

trunco 60 cm. et ultra diam., ramulis crassiusculis primo ut omnibus

partibus novellis dense minute sordido-tomentulosis vel serius

glabratis, internodiis brevibus; folia majuscula petiolata, rhachi cum

petiolo 7.5-18 cm. longa sparse minute tomentella vel glabrata,

petiolulis crassis 5 mm. longis; foliola 7-9 subcoriacea obovato-

oblonga vel elliptico-oblonga 8-12 cm. longa 4-6 cm. lata, apice

obtusa vel rotundata et abrupte breviter cuspidato-acuminata, basi

rotundata vel obtusa, supra glabra, nervis venisque manifestis inter-

dum prominulis, subtus primo minute sericea vel tomentulosa, cito

glabrata, nervis utroque latere ca. 11 angulo semirecto adscendenti-

bus subcurvis marginem fere attingentibus; inflorescentia cymoso-

paniculata ampla in statu fructifero tantum visa; legumen 2-2.5 cm.

latum sessile sed basi constrictum usque 5 cm. longum, apice late

rotundatum et apiculatum fere glabrum; semina 1 vel 2 subcom-

pressa subquadrata fere 1 cm. longa laete coccinea. — Mexico: Uberto,

Oaxaca, 30-90 meters, June, 1937, Llewelyn Williams 9423 (type in

Herb. Field Mus.). Fortune, Veracruz, 30-50 meters, March, 1937,

Williams 8926.

Vernacular name Colorin. Crown wide-spreading or round;

trunk unbranched for half its height, with or without small but-

tresses; bark light brown or grayish, fairly smooth or with numerous

small excrescences; fruit dark brown or almost black when ripe;

growing in fairly dense, tall forest. The second collection cited

exhibits some differences from the type, and it is possible that it

really represents a distinct species. This is, apparently the first

Ormosia to be recorded from Mexico, a tree once described by the

writer under that name having been transferred later to the genus

Dussia.

Rhynchosia rariflora Standl., sp. nov. — Herbacea scandens,

caule gracillimo dense pilis brevibus patentibus viscido-piloso, inter-

nodiis plerumque foliis paullo brevioribus; stipulae persistentes

lineari-subulatae 4 mm. longae dense breviter pilosae virides; folia

STUDIES OF AMERICAN PLANTS 265

parva 1-2.5 cm. longe petiolata, petiolo gracili viscido-piloso, rhachi

ad 1 cm. longa, petiolulis vix ultra 1 mm. longis; foliola 3 ovato-

deltoidea, ovato-oblonga vel lanceolato-oblonga inaequalia 2-3 cm.

longa 1-1.5 cm. lata, acuta ad longiacuminata, terminale basi

rotundatum, lateralia basi valde obliqua et rotundata, membranacea,

supra in sicco viridia albido-papillosa et sparse pilosula, subtus fere

concoloria, sparse glanduloso-puncticulata, dense molliter pilosula;

racemi axillares foliis breviores vulgo laxe 2-3-flori, pedunculo

gracili elongate, pedicellis gracilibus ad 5 mm. longis viscido-pilosis;

calyx extus viscido-pilosus ca. 7 mm. longus, lobis tubo basi

rotundato campanulato longioribus, inferiore aliis multo longiore,

omnibus lanceolato-attenuatis; corolla 1 cm. longa, vexillo extus

dense viscido-pilosulo; legumen sessile 18 mm. longum 7 mm. latum

oblongum dense adpresso-pilosulum atque sparse longe viscido-

villosum, apice oblique obtusum et subito in stylum 8 mm. longum

contractum; semina 2. — Mexico: Guasaremos, Rio Mayo, Chihuahua,

valley margin, September 28, 1936, Howard Scott Gentry 2883

(type in Herb. Field Mus.).

"A small vine growing among grasses; flowers yellow."

VOCHYSIACEAE

Vochysia hondurensis Sprague, Kew Bull. 183. 1922. — Mexico:

Ubero, Oaxaca, 30-90 meters, June, 1937, L. Williams 9467. Local

name Corpus or Corpo. A tree up to 27 meters high, the crown

narrow, spreading or almost flat, rather dense; trunk 80 cm. in

diameter, unbranched for 13 meters, the bark grayish, scaly; growing

in dense, tall forest in dry loam. Previously a single representative

of the genus, V. tabascana Sprague of Tabasco, has been known

from Mexico.

EUPHORBIACEAE

Tetrorchidium rotundatum Standl. Trop. Woods 16: 44.

1928. — Heretofore the species has been found in Honduras and

Nicaragua, but specimens are now at hand from Mexico: Fortune,

Coatzacoalcos River, Veracruz, 30-50 meters, March, 1937, L.

Williams 8387. A straggly tree 5-6 meters high, with a spreading

crown; trunk slender, branching about a meter from the base;

growing in fairly dense forest.

Plukenetia angustifolia Standl. Field Mus. Bot. 4: 314. 1929.

—Mexico: Ubero, Oaxaca, 30-90 meters, in 1937, L. Williams 9166,

9358, 9390. A slender, woody vine, growing usually in thickets

266 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

along roadsides. Until now the species has been known only from

Honduras, Guatemala, and British Honduras.

Phyllanthus Williamsii Standl., sp. nov. — Herba gracilis annua

erecta glabra prope basin simplex, caule usque 60 cm. alto superne

ramos paucos vel numerosos graciles erectos vel valde adscendentes

emittente tereti viridi, ramis plerumque caule brevioribus; stipulae

persistentes subulato-filiformes ca. 2 mm. longae; folia parva vix

ad 1 mm. longe petiolata ovalia vel ovali-oblonga, interdum ovato-

ovalia, 1-2 cm. longa 7-12 mm. lata apice late rotundata, interdum

obscure subapiculata, basi late rotundata, tenuia, supra in sicco

viridia, subtus paullo pallidiora, costa gracillima obscura, nervis

lateralibus utroque latere 5-6 tenerrimis obscuris; flores monoeci

axillares solitarii vel pauci et fasciculati,pedicellisfiliformibusflorum

fertilium usque 5.5 mm. longis; sepala floris masculi vix ultra 1.5 mm.

longa, floris feminei 5 in statu fructifero 3 mm. longa obovata viridia

apice rotundata prominenter costata; capsula depresso-globosa sepalis

solemniter brevior. — Mexico: Fortune, Coatzacoalcos River, Vera-

cruz, 30-50 meters, March, 1937, Llewelyn Williams 81*33 (type in

Herb. Field Mus.), 8533.

Local names Anilillo and Hierba de leche. Growing along paths

or trails in forest. Evidently related to P. lathyroides HBK., which

is similar in habit and general characters, but has much smaller and

especially narrower leaves.

BOMBACACEAE

Ochroma concolor Rowlee, Journ. Wash. Acad. Sci. 9: 161.

1919.— Mexico: Ubero, Oaxaca, 30-90 meters, L. Williams 9236.

Local name Corcho. A tree 12-15 meters high with wide-spreading

crown; trunk 40 cm. in diameter, the bark smooth, pale grayish

brown. The genus Ochroma has been reported previously from

southern Mexico, but there has been doubt as to the species repre-

sented. The present material is satisfactorily referable to the species

named above, but there is still much uncertainty as to which, if

any, of the species named by Rowlee are really valid.

BEGONIACEAE

Begonia MacDanielsii Standl., sp. nov. — Herba ut videtur

caulescens simplex ca. 60 cm. alta, caule crassiusculo superne sub-

geniculato subtereti plus minusve, ad nodos densius, pilis brevibus

brunnescentibus vel ferrugineis villoso, internodiis elongatis; stipulae

hyalinae ferrugineae vel pallidae ad 8 mm. longae triangulari-ovatae

STUDIES OF AMERICAN PLANTS 267

obtusae ciliatae deciduae; folia majuscula longissime petiolata

tenuiter membranacea, petiole 10 cm. longo et ultra sparse vel

subdense breviter villosulo; lamina ambitu fere rotundata 8-15 cm.

longa et aequilata vel latior, apice longe anguste attenuato-acumi-

nata, basi breviter vel profunde aperte cordata, breviter angulato-

lobata, lobis acutis inaequalibus, margine arete inaequaliter repando-

dentata et ciliata, dentibus acutis mucronatis, supra in sicco viridis

subdense sed non conspicue pilis valde inaequalibus crassiusculis

villosula, subtus densius villosula et puberula, basi 7-nervia; cymae

axillares paniculam angustam valde elongatum efformantes, 2-5

cm. longe pedunculatae laxe pauci- vel multiflorae, ramis dense bre-

viter villosis, pedicellis floriferis brevibus fere glabris, fructiferis

gracillimis usque 4 cm. longis; sepala exteriora floris masculi ovato-

rotundata 8 mm. longa et fere aequilata apice late rotundata, basi

subcordata glabra utvidetur alba vel pallide rosea; bracteae parvae

subrotundatae ciliatae vix ultra 3 mm. longae; capsula majuscula

ca. 1.5 cm. longa, parte seminifera oblonga 6-7 mm. lata, ala

maxima ad 1 cm. lata apice suboblique truncata, basi subtruncata

vel late rotundata, alis alteris multo angustioribus ad 6 mm. latis

tenuibus reticulato-venosis. — Mexico: In moist woods, Pi£ de La

Cuesta, 10 miles north of Acapulco, Guerrero, 360 meters, August 23,

1935, L. H. MacDaniels 207 (type in Herb. Field Mus.).

This plant is one of a large collection made in central Mexico

by Mr. MacDaniels, and forwarded to the writer for determination

by Dr. L. H. Bailey.

ARALIACEAE

Didymopanax Morototoni (Aubl.) Dene. & Planch. — One of

the common trees of the Atlantic lowland forests of Central America,

but not listed previously from Mexico. The following collections

are at hand from the Isthmus of Tehuantepec: Ubero, Oaxaca,

30-90 meters, in 1937, L. Williams 9416, 9243, 9161. Vernacular

names Roble bianco, Chancarro bianco, Pi6 de gallo, and Mano

de danto. A tree of 15-30 meters, with narrow, spreading crown;

trunk 25-30 cm. or more in diameter, the bark smooth, light gray

or grayish brown, on the lower part of the trunk brown and medium

scaly; common on dry slopes in forest, or often on cut-over land.

ASCLEPIADACEAE

Vincetoxicum adenocardium Standl., sp. nov. — Herbacea

volubilis (?), caule crasso subtereti ubique dense puberulo et pilis

longiusculis albidis patentibus plurilocularibus sat dense piloso,

268 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

internodiis 2-3 cm. longis; folia parva longipetiolata crasse herbacea,

petiolo crassiusculo 1.5-2.5 cm. longo dense puberulo et albido-

piloso; lamina late ovato-cordata 3-5 cm. longa 2.5-3.5 cm. lata

subabrupte longe anguste acuminata, basi profunde (ca. 8 mm.)

cordata, sinu angusto, lobis posticis rotundatis, supra in sicco

viridis dense pilis albidis attenuatis pilosa, tactu mollis, subtus

fere concolor, ubique dense albido-glanduloso-puberula, ad venas

albido-villosa, basi 5-7-nervia, nervis venisque prominentibus

conspicuis pallidis reticulatis; flores racemosi, racemis axillaribus

solitariis petiolo paullo brevioribus dense pauci- vel multifloris,

pedicellis hispidulis ad 3 mm. longis; sepala viridia lanceolata fere

2 mm. longa extus hispidula acuta; corolla ut videtur brunneo-

purpurea extus sparse hispidula, tubo calyci aequilongo, lobis

linearibus intus glabris ca. 8 mm. longis vix ultra 1 mm. latis obtusis

suberectis, marginibus plus minusve recurvis. — Mexico: Presa de

Chihuahua, State of Chihuahua, June 22, 1936, Harde LeSueur 845

(type in Herb. Field Mus.).

Noteworthy for the dense, glandular covering of the lower leaf

surface, also for the linear corolla lobes. The plant is probably

scandent, but it is possible that it is rather prostrate.

Vincetoxicum belizense Lundell & Standl., sp. nov. — Herba

scandens, caulibus gracilibus striatis adpresso-pilosis; petioli graciles

striati 5-17 mm. longi puberuli; lamina ovata vel ovato-oblonga

4.5-7.5 cm. longa 2-4.5 cm. lata, apice acuto-acuminata, basi

breviter cordata, subchartacea, supra griseo-viridis et pilis paucis

brevibus adpressis secus nervos exceptis glabra, subtus pallidior

pilis paucis brevibus secus costam exceptis glabra; pedunculi axil-

lares 8-12 mm. longi puberuli, floribus paucis (ca. 8-12) subumbel-

latis, pedicellis gracilibus striatis puberulis 6-10 mm. longis; calyx

ad basin 5-partitus, sepalis lineari-lanceolatis ca. 3 mm. longis 1 mm.

latis apice subobtusis intus glabris, extus puberulis, sepalis cum

appendicibus 5 parvis basalibus alternantibus; corolla rotata fere

ad basin 5-loba 18-20 mm. diam., lobis anguste lanceolatis ca. 9 mm.

longis 3 mm. latis apice acutiusculis, intus glabris, extus sparse

puberulis; corona exterior glabra carnosa profunde 5-loba, lobis 4-

dentatis intus irregulariter appendiculatis. — British Honduras:

Corozal District, 1931-32, Percy H. Gentle 299 (type in Herb. Univ.

Michigan; photo, in Herb. Field Mus.).

Vernacular name, Dama de noche. Distinguished by the ap-

pressed pubescence of the stems, small, lanceolate sepals and corolla

lobes, and the deeply 5-lobate, dentate outer corona.

STUDIES OF AMERICAN PLANTS 269

Vincetoxicum Gentlei Lundell & Standl., sp. nov.— Herbacea

scandens, caulibus ut petiolis pedunculisque pilis brevibus nigris

basi tuberculato-dilatatis atque aliis longioribus rigidulis inter-

mixtis dense brevihirsutis; petioli graciles striati 3-7 cm. longi;

lamina late ovata vel ovato-suborbicularis 7.5-13 cm. longa 5.3-10

cm. lata, apice subito breviter acuto-acuminata, basi profunde

cordata, sinu angusto, membranacea, supra obscure viridis sparse

pubescens, subtus pallide lutescenti-viridis atque dense molliter

fulvo-pubescens, ad nervos breviter hirsuta; pedunculi axillares

3-7.5 cm. longi minute striati; flores pauci (4 et ultra) subumbellati,

pedicellis gracilibus striatis 1.5-2.5 cm. longis; calyx viridis 5-

partitus, sepalis orbicularibus ca. 3.8 mm. longis 3-nerviis intus

glabris, extus pilis brevibus nigris basi tuberculiformibus et aliis

longis rigidulis intermixtis brevihirsutis, sepalis cum appendicibus

5 parvis basalibus alternantibus; corolla luteo-viridis rotata pro-

funde 5-loba 15-16 mm. diam., lobis suborbicularibus ca. 5 mm.

longis 6-7 mm. latis obscure irregulariter crenulatis, intus glabris,

extus hirtellis atque pilis paucis nigris basi tuberculiformibus con-

spersis; corona glabra subintegra; folliculi lanceolati ca. 7 cm. longi

1.3-1.7 cm. diam., tuberculis 5-9 mm. longis conspersi, breviter

hirsuti atque pilis rigidulis basi incrassatis induti. — British Hon-

duras: In forest on a hill slope near Gracie Rock, Sibun River,

January 31, 1936, C. L. Lundell 1779 (flowers) and 1780 (fruit) (type

in herb. Univ. Michigan; photo, in Herb. Field Mus.). Corozal

District, San Andres, Gentle 541; a vine in high ridge.

Noteworthy for its small, green flowers, large, ovate-suborbicular

leaves, and black, tuberculate pubescence. Only one flower in an

umbel is open at a time. Because of the pubescence, the fruits

have a black appearance.

Vincetoxicum Hatchii Standl., sp. nov. — Volubilis, caule

crasso tereti viridi densiuscule pilis brevibus sordidis patentibus

piloso; folia permagna longissime petiolata membranacea, petiolo

gracili (in folio uno viso) 21 cm. longo dense breviter piloso; lamina

fere orbicularis 21 cm. longa 18 cm. lata, apice rotundata et abrupte

acuminata, acumine triangulari-attenuato 3 cm. longo, basi pro-

funde (4 cm.) cordata, sinu angusto fere clause, lobis posticis late

rotundatis, supra in sicco viridis ubique pilis longiusculis mollibus

patentibus pilosa, subtus fere concolor, densius pilis paullo breviori-

bus molliter pilosa, basi 7-nervia, costa utroque latere nervos la-

terales 3 emittente, nervis venisque prominentibus laxe reticulatis;

calyx 1.5 cm. longus dense breviter patenti-pilosulus fere ad basin

270 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

5-lobus, lobis ellipticis 6-8 mm. latis obtusis viridibus prope basin

paullo angustatis; corolla rotata 4 cm. lata extus subsparse minute

puberula, ad medium 5-loba, lobis rotundato-ovatis ca. 1.5 cm. latis

apice subretusis intus glabris solemniter reticulato-venosis; corona

annularis 6 mm. diam. 5-loba, lobis rotundato-truncatis obscure

crenato-lobulatis, gynostegio obscure pentagono. — Guatemala: Cerro

Sobre, Finca Seamay, Senahu, Alta Verapaz, 900 meters, July 24,

1936, W. R. Hatch & C. L. Wilson 107 (type in Herb. Field Mus.).

Noteworthy for the extremely large, almost orbicular leaves,

and for the large flowers.

Vincetoxicum LeSueurii Standl., sp. nov. — E radice crassa

perennis, caulibus numerosis ut videtur prostratis dense pilis longis

albis patentibus vel subretrorsis pilosis, internodiis brevibus; folia

parva numerosa breviter petiolata herbacea, petiolo crasso dense

albo-piloso; lamina late ovata vel rotundato-ovata 8-11 mm. longa

5-9 mm. lata plus minusve inaequilateralis, apice obtusissima vel

subrotundata, basi cordata, sinu aperto, supra viridis glabra, subtus

densissime pilis longis albis setuloso-pilosa; umbellae axillares

numerosae laxe multiflorae, pedunculo crasso 1.5-2.5 cm. longo

dense patenti-piloso, pedicellis 4-7 mm. longis dense pilosis, floribus

ut videtur interdum cernuis; calyx 4 mm. longus extus dense albo-

pilosus, profunde 5-lobus, lobis oblongo-ovatis obtusis erectis;

corolla ut videtur atropurpurea 7-8 mm. longa intus glabra, fere ad

basin 5-loba, lobis erectis lanceolato-oblongis obtusis, extus apicem

versus prope medium pilis perpaucis albis setiformibus consper-

sis, solemniter longitrorsum fusco-lineatis. — Mexico: Majalca,

Chihuahua, June 24, 1936, Harde LeSueur 844 (type in Herb.

Field Mus.).

Closely related to Vincetoxicum nummularium (Dene.)

Standl., comb. nov. (Chthamalia nummularia Dene, in DC. Prodr.

8: 605. 1844), which differs in having longer pedicels and a densely

setulose-pilose corolla; also to V. chihuahuense (Gray) Standl.,

comb. nov. (Gonolobus chihuahuensis Gray, Proc. Amer. Acad. 21:

398. 1886), in which the leaves are densely pilose on the upper surface.

Vincetoxicum Pittieri Standl., sp. nov. — Scandens, caulibus

teretibus gracilibus viridibus glabris, internodiis plerumque foliis

longioribus; folia modica petiolata herbacea, petiolo gracili 2 cm.

vel paullo ultra longo puberulo vel fere glabro; lamina oblongo-

elliptica vel ovato-oblonga 5.5-8.5 cm. longa 2.5-4 cm. lata longius-

cule sensim acuminata, basi rotundata et interdum subemarginata,

STUDIES OF AMERICAN PLANTS 271

glabra vel subtus ad costam sparse puberula, supra in sicco fusco-

viridis, costa nervisque prominulis, subtus concolor, costa gracili

prominente, nervis lateralibus utroque latere ca. 5 angulo semirecto

adscendentibus arcuatis, venis paucis inconspicuis laxissime reticu-

latis; umbellae axillares solitariae 2-3 cm. longe pedunculatae, pedi-

cellis gracilibus 1.5-2 cm. longis sparse minute puberulis; calyx 3.5

mm. longus extus puberulus fere ad basin 5-lobus, lobis oblongis

obtusis erectis; corolla ca. 14 mm. longa rotata extus sparse puberula,

intus versus basin pilis longis laxissimis albidis pilosa, lobis tubo

duplo longioribus late triangulari-ovatis, apice obtusis et interdum

breviter emarginatis, conspicue longitrorsum lineatis; corona fere

5 mm. lata profunde 5-loba, lobis remotis obreniformibus basi

abrupte contractis et substipitatis, apice retusis, gynostegio penta-

gono 2.5 mm. lato. — Panama: Forests along the Rio Ladrillo and

vicinity, above El Boquete, Chiriqui, 1,200-1,300 meters, March,

1911, H. Pittier 3059 (type in Herb. Field Mus.).

Vincetoxicum quercetorum Standl., sp. nov. — Scandens, ut

dicitur suffruticosa, caule gracili viridi tereti densissime viscido-

puberulo et subdense pilis albidis patentibus rigidulis hirsute, inter-

nodiis foliis longioribus; folia modica petiolata membranacea, petiolo

gracili 1.5-3 cm. longo puberulo et hirsuto; lamina oblongo-tri-

angulari-ovata 5-8 cm. longa 2-4 cm. lata longe anguste sensim

attenuata, basi cordata, lobis posticis rotundatis, supra in sicco

viridis sat dense breviter villosa, nervis venisque vix elevatis, subtus

paullo pallidior, sat dense puberula, ad venas villosula, costa utroque

latere nervos ca. 4 emittente, venis obscuris; umbellae axillares

solitariae interdum racemiformes laxe pauciflorae, pedunculo 2-2.5

cm. longo gracili dense puberulo et sparse hirsuto, pedicellis usque

2 cm. longis dense viscido-puberulis et sparse hirsutis, bracteis

viridibus linearibus vel lanceolatis conspicuis ad 8 mm. longis; calyx

viridis ca. 8 mm. longus extus minute puberulus et hinc inde hirsutus

adpressus fere ad basin 5-lobus, lobis ciliatis oblongo-ovatis acutis;

corolla ut dicitur coeruleo-purpurea fere 2 cm. longa rotata extus

sparse minute puberula vel fere glabra, intus omnino glabra, fere ad

basin 5-loba, lobis oblongis vel anguste triangulari-oblongis apicem

subobtusum versus plus minusve attenuatis solemniter reticulato-

venosis; corona 5 mm. diam. fusca breviter 5-loba, lobis crassis

suberectis, apice late obtuso subretuso incurvo, gynostegio penta-

gono ad 4.5 mm. lato. — Mexico: Sierra Charuco, Rio Mayo, Sonora,

on oak slope, July 22, 1936, Howard Scott Gentry 2297 (type in Herb.

Field Mus.).

272 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

"A scandent perennial; old wood erect, the new trailing. Flowers

olive-green, bluish purple in the saucer."

Vincetoxicum tristiflorum Standl., sp. nov. — Frutex scandens,

ramis vetustioribus lignosis pallidis rimosis, novellis viridibus

teretibus dense glanduloso-puberulis et pilis albidis patentibus

rigidis hirsutis, internodiis plerumque elongatis; folia modica longi-

petiolata membranacea, petiolo gracili 2.5-5 cm. long glanduloso-

puberulo et sparse hirsute; lamina ovato-cordata, interdum ro-

tundato-ovata vel subtriangulari-ovata, 5.5-11 cm. longa 3-6 cm.

lata sublonge acuminata, basi profunde (ca. 1 cm.) cordata, sinu

aperto lato vel subangusto, lobis posticis rotundatis, supra in sicco

viridis pilosa, nervis manifestis et subprominulis, subtus paullo

pallidior viscido-puberula et ad nervos breviter villosula, basi 5-

nervia, costa utroque latere nervos 2 laterales emittente, venis

obscuris; umbellae axillares solitariae, interdum racemiformes, laxe

pauci- vel multiflorae, pedunculo gracili vulgo 2-2.5 cm. longo

viscido-puberulo et sparse hirsute, pedicellis gracilibus plerumque

8-12 mm. longis glanduloso-puberulis et sparse hirsutis, bracteis

viridibus linearibus vel fere subulatis usque 5 mm. longis; calyx

viridis 4-5 mm. longus extus sparse hirtellus fere ad basin 5-lobus,

lobis oblongo-lanceolatis ciliatis acutis vel acuminatis; corolla ut

videtur campanulata in sicco atropurpurea 12 mm. longa extus

sparse minute puberula vel fere glabra, intus glabra, fere ad basin

5-loba, lobis anguste lanceolato-oblongis ca. 3 mm. latis apicem

acutiusculum versus longe sensim attenuatis; corona 2.5 mm. diam.

annularis breviter 5-loba, gynostegio pentagono. — Mexico: Gua-

saremos, Rio Mayo, Chihuahua, forest slope, a purple-flowered vine

with Burseras, in woods, August 23, 1936, Howard Scott Gentry 2415

(type in Herb. Field Mus.). San Bernardo, Rio Mayo, Sonora,

August 24, 1935, Gentry 1626. Rio Bonito, Chihuahua, August,

1936, Harde LeSueur 840.

Gentry reports the Warahio name as "mahoy piwala," and

states that the young and tender fruit is roasted and eaten by the

native people.

LABIATAE

Agastache ionocalyx (Robinson) Standl., comb. nov. Brit-

tonastrum ionocalyx Robinson, Proc. Amer. Acad. 43: 25. 1907.

Agastache Palmeri (Robinson) Standl., comb. nov. Brit-

tonastrum Palmeri Robinson, Proc. Amer. Acad. 43 : 25. 1907.

STUDIES OF AMERICAN PLANTS 273

SOLANACEAE

Physalis caudella Standl., sp. nov. — Herba ramosa perennis,

ramis crassiusculis tortuosis subdense pilis albidis crassiusculis laxis

villosis, internodiis brevibus; folia modica longipetiolata herbacea,

petiolo usque 1.5 cm. longo, altero latere propter basin laminae

decurrentem interdum 7 mm. longiore, saepius fere ad basin alato-

marginato villoso; lamina lanceolata vel oblongo-lanceolata 3.5-6.5

cm. longa 1.5-2 cm. lata longe attenuato-acuminata, basi insigniter

inaequali acuta, in sicco laete viridis, supra sparse villosa vel gla-

brata, subtus paullo densius praesertim ad nervos albido-villosa,

margine integro vel interdum remote breviter repando-dentato;

flores axillares solitarii, pedicellis gracilibus recurvis usque 8 mm.

longis albido-villosis; calyx in statu florifero 11 mm. longus dense

pilis longis laxis albidis villosus profunde 5-lobus, lobis anguste

lanceolatis tubo duplo longioribus longissime anguste attenuatis;

corolla lutea, fauce brunneo-purpurea, extus ad nervos sparse

longivillosa, late campanulata, fere 2.5 cm. longa; calyx fructifer

late ovoideus usque 5 cm. longus basi depressus 3 cm. latus pallide

viridis lucidus, solemniter reticulato-venosus, sparse breviter vil-

losulus; bacca globosa ca. 1.5 cm. diam. — Mexico: Cajurichi, Rio

Mayo, Chihuahua, 2,160 meters, on pine-oak slope, September 13,

1936, Howard Scott Gentry 2710 (type in Herb. Field Mus.).

Noteworthy for the very large fruiting calyces with extremely

narrow and greatly elongate lobes.

Physalis eximia Standl., sp. nov. — Herba ramosa annua(?),

ramis crassis ut videtur carnosis glanduloso-puberulis et sparsius

pilis longiusculis patentibus laxis glanduloso-villosis, internodiis

elongatis; folia majuscula longipetiolata herbacea, petiolo crassius-

culo 1.5-5.5 cm. longo glanduloso-villoso; lamina rotundato-ovata

vel rotundato-deltoideo-ovata 5.5-9 cm. longa 4-7.5 cm. lata acuta

vel subobtusa, basi valde inaequali breviter vel profundius cordata,

altero latere interdum 6 mm. breviore, lobis posticis rotundatis vel

interdum acutiusculis, in toto margine grosse inaequaliter undulato-

dentata vel saepe sublobata, dentibus vel lobis obtusis, supra sub-

dense breviter villosula, subtus praesertim ad nervos pilis brevibus

albidis villosula, nervis lateralibus utroque latere ca. 5; flores axil-

lares solitarii cernui, pedicellis gracillimis usque 3.5 cm. longis dense

glanduloso-villosis; calyx in statu florifero 1.5 cm. longus basi late

rotundatus vel truncatus densiuscule viscido-villosus viridis cam-

panulatus, lobis anguste triangularibus sensim filiformi-attenuatis;

corolla campanulata ut videtur viridi-lutea et fauce immaculata 3.5

274 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

cm. longa extus glabra vel tantum ad nervos minute puberula.—

Mexico: Majalca, Chihuahua, June 24, 1936, Harde LeSueur 894

(type in Herb. Field Mus.).

RUBIACEAE

Bertiera guianensis Aubl. PI. Guian. 180. 1775. — The species,

a frequent shrub of the Central American tierra caliente, has been

known to range as far north as British Honduras. The following

collections attest the fact that its range extends to the Isthmus of

Tehuantepec: Ubero, Oaxaca, Mexico, 30-90 meters, in 1937, L.

Williams 9372, 9177, 9404, 9312. Local names Cafecillo and Cruce-

cillo; a shrub 2 meters high or less, sometimes subscandent, the

small flowers white. Frequent on slopes in thickets or forest.

Coussarea Duckei Standl. Field Mus. Bot. 8: 174. 1930.

Of this exceptionally well marked species it is now possible to

report another collection, of a date earlier than that of the type:

Brazil: Rio Tapajoz, a shrub of 2-3 meters, flowers white, Decem-

ber 7, 1915, Ducke 15857 (herb. Mus. Paraensis).

Coussarea mexicana Standl., sp. nov. — Arbor 9-11-metralis,

trunco usque 25 cm. diam., omnino glabra, ramulis crassiusculis

pallide lenticellatis, internodiis brevibus vel interdum valde elonga-

tis; stipulae persistentes et induratae late ovatae obtusae vix 3 mm.

longae subpatentes; folia mediocria brevissime petiolata subcoriacea,

petiolo crassiusculo 3-5 mm. longo; lamina oblongo-elliptica 8-15

cm. longa 3.5-6.5 cm. lata, apice obtusa et breviter abrupte caudato-

acuminata, acumine obtuso usque 1 cm. longo, basi acuta vel acu-

minata vel interdum attenuata, supra lucida, nervis venisque pro-

minulis, subtus fere concolor vix lucida, costa gracili prominente,

nervis lateralibus utroque latere ca. 7 angulo lato divergentibus

gracillimis prominulis arcuatis prope marginem arcuato-conjunctis,

venulis vix prominulis laxe reticulatis, axillis nervorum brevissime

barbatis et domatiatis; inflorescentia terminalis thyrsoideo-pani-

culata subdense multiflora fere 2 cm. longe pedunculata, ca. 4 cm.

longa atque 5 cm. lata, ramis crassiusculis atque ad nodos valde

incrassatis, floribus cymosis, cymis paucifloris congestis, pedicellis

crassiusculis vix ad 2 mm. longis; hypanthium turbinatum fere

2 mm. longum; calyx late campanulatus 2.5 mm. longus remote

undulato-dentatus; corolla alba 12 mm. longa, tubo crassiusculo

superne subdilatato, lobis lanceolato-oblongis obtusis tubo paullo

longioribus. — Mexico: Ubero, Oaxaca, 30-90 meters, June, 1937,

Llewelyn Williams 9442 (type in Herb. Field Mus.).

STUDIES OF AMERICAN PLANTS 275

A tree with spreading crown; trunk straight, round, unbranched

for about 3.5 meters; bark greenish; wood brown throughout, used

for railroad ties, sometimes for house construction and fuel. This

is, apparently, the first record of the genus Coussarea for Mexico.

Guettarda Duckei Standl., sp. nov. — Frutex, ramulis teretibus

ferrugineis, interdum spinis crassis rectis patentibus ca. 1.5 cm.

longis armatis, novellis strigillosis et sparse hirsutis, internodiis plus

minusve elongatis; stipulae deciduae 5 mm. longae vel ultra ovatae

extus dense strigosae; folia majuscula breviter petiolata firme mem-

branacea, petiolo gracili 5-20 mm. longo adpresso-hirsuto; lamina

elliptica vel ovato-elliptica 9-15 cm. longa 4.5-8 cm. lata acuta vel

breviter acuminata, basi rotundata vel obtusa, interdum subemar-

ginata, supra in sicco fusca lucida sparse pilis brevibus subpatentibus

setuloso-pilosa, costa nervisque prominentibus, nervulis prominulis,

subtus paullo pallidior, ad costam strigosa, aliter dense velutino-

pilosa, costa gracili elevata, nervis lateralibus utroque latere ca. 12

gracillimis prominentibus angulo latiusculo adscendentibus arcuatis

marginem fere attingentibus; inflorescentiae axillares multiflorae

compactae cymosae ca. 2.5 cm. latae, pedunculo gracili ad 12.5 cm.

longo strigilloso et subadpresse hirsuto, bracteis lineari-subulatis

calyce brevioribus, floribus sessilibus vel breviter pedicellatis; hypan-

thium vix ultra 1.5 mm. longum latum; calyx tubulosus 2 mm. longus

truncatus dense ochraceo-tomentellus; corolla extus pilis erectis

ochraceis dense sericea, tubo 1 cm. longo superne 1.5 mm. lato, lobis

rotundatis ca. 2 mm. longis patentibus intus glabris; fructus ovalis

in sicco 2 cm. longus 1 cm. latus densissime adpresse tomentellus

teres, putamine 4-loculari. — Brazil: Almeirim, campo baixo,

December 14, 1902, A. Ducke 3056 (type in Herb. Field Mus.).

Itacoatiara, beira, varzea, Igarap£ da boca do Lago de Serpa, July 4,

1913, Ducke 12500 (herb. Mus. Paraensis). Here may belong also,

Ducke 2181 from M. Calmen, Ceara.

Related to G. boliviano, Standl., a species with much larger

corollas.

Hoffmannia Lawrancei Standl., sp. nov. — Frutex 2-2.5 m.

altus, trunco ad 3.5 cm. diam., ramis crassis fuscis teretibus, novellis

glabris; stipulae non visae; folia inter maxima breviter petiolata

herbacea, petiolo crasso ad 2.5 cm. longo glabro; lamina oblonga vel

oblongo-elliptica ca. 27 cm. longa atque 9-12.5 cm. lata, apice

obtusa vel rotundata et subito triangulari-acutata, apice ipso acuto,

basi sensim vel subabrupte acutata et plus minusve decurrens,

276 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

glabra, supra in sicco fuscescens opaca, costa nervisque prominulis,

subtus brunnescens, costa crassiuscula elevata, nervis lateralibus

utroque latere ca. 15 angulo lato adscendentibus obliquis arcuatis

prope marginem arcuato-conjunctis; flores cymosi, cymis laxe pauci-

floris petiolis subaequilongis graciliter pedunculatis ad nodos ra-

morum crassiorum fasciculatis, ramis rubris glabris, pedicellis

gracillimis usque 1 cm. longis; hypanthium ca. 2 mm. longum ob-

longo-obovoideum teres glabrum, calyce 2.5 mm. lato obscure

remote denticulate; corolla lutea in alabastro 7 mm. longa extus

glabra apice acutiuscula, lobis linearibus tubo plus quam duplo

longioribus. — Colombia: Region of E. Chapon, State of Boyaca,

in thin forest at brook side, 1,110 meters, May 9, 1932, A. E. Lawrance

28 (type in Herb. Field Mus.).

Hoffmannia macrosiphon Standl., sp. nov. — Frutex 2-me-

tralis ut videtur ramosus, ramis gracilibus teretibus viridescentibus

glabris, internodiis brevibus; stipulae parvae deciduae; folia inter

minora petiolata membranacea opposita, petiolo 8-22 mm. longo

glabro gracili; lamina anguste oblanceolato-oblonga 7-12.5 cm. longa

2.3-3.2 cm. lata, apicem obtusum versus longe anguste attenuata

vel interdum abrupte acuminata, basin versus longe sensim at-

tenuata, glabra, supra in sicco griseo-viridis opaca, nervis obsoletis,

subtus multo pallidior, costa crassiuscula vix prominula, nervis

lateralibus utroque latere ca. 8 angulo lato adscendentibus incon-

spicuis, venis obsoletis; flores cymosi, cymis axillaribus solitariis 2-3-

floris graciliter ad 3 cm. longe pedunculatis, pedicellis gracillimis

ca. 1 cm. longis; hypanthium anguste oblongum 4 mm. longum ca.

1.5 mm. latum glabrum, calyce 2.5 mm. lato breviter obtuse dentato

erecto; corolla extus glabra, tubo 2 cm. longo basi fere 2 mm. lato,

fauce subito dilatato et 5 mm. lato, lobis late rotundato-ovatis

obtusis ca. 6 mm. longis subpatentibus intus glabris; antherae semi-

exsertae fere 4 mm. longae; stylus antheras aequans, ramis crassis

2 mm. longis. — Guatemala: In heavy forest, Volcan Zunil, Dept.

Quezaltenango, 2,400 meters, August 4, 1934, Alexander F. Skutch

937 (type in Herb. Field Mus.; duplicate in herb. Arnold Arb.).

"Corolla tube white suffused with red; lobes dull red on the

margin, yellowish in the center. Berries red." The species is an

isolated one, so much so, especially as regards the shape and size of

the corolla, that its reference to Hoffmannia is somewhat question-

able. There is, apparently, no other genus to which it might be

referred, and with the material now available there seem to be no

grounds for giving it separate generic rank.

STUDIES OF AMERICAN PLANTS 277

Ixora faroensis Standl., sp. nov. — Frutex 1.5 m. altus ut videtur

dense ramosus, ramis sat crassis rigidis teretibus, novellis in sicco

stramineis plus minusve compressis glabris, internodiis brevibus;

stipulae persistentes e basi lata subulatae rigidae glabrae; folia

parva brevissime petiolata rigido-coriacea, petiolo crasso vix ad 3

mm. longo; lamina anguste lanceolato-oblonga, in sicco saepe compli-

cata, 4-7 cm. longa 0.8-1.8 cm. lata sensim acuminata, basi acuta,

glabra, supra lucidissima, costa gracili valde elevata, nervis venis-

que obsoletis, subtus fere concolor brunnescens lucida, costa promi-

nente, nervis lateralibus utroque latere ca. 11 obscuris angulo fere

recto abeuntibus, prope marginem arcuato-conjunctis, venis ob-

soletis, margine saepe recurvo; inflorescentia terminalis cymoso-

corymbosa laxe multiflora, ca. 2 cm. longa et aequilata vel latior,

pedunculata, bracteis parvis lanceolatis vel subulatis, ramis puberu-

lis, pedicellis 2-4 mm. longis puberulis; hypanthium obovoideum 1

mm. longum puberulum, calyce aequilongo puberulo, lobis ovatis

acutis suberectis; corolla rosea puberula, tubo 8 mm. longo gracili

superne paullo dilatato, lobis patentibus ellipticis obtusis 3-3.5 mm.

longis intus glabris; antherae semiexsertae. — Brazil: Campos a E.

do Faro, August 27, 1907, A. Ducke 8521 (type in herb. Mus. Paraen-

sis; fragment in Herb. Field Mus.), 8522.

A well marked species because of the rather small and very nar-

row leaves.

Ixora Martinsii Standl., sp. nov. — Kami subgraciles teretes

in sicco fusco-olivacei striati glabri, internodiis brevibus vel elon-

gatis; stipulae adpressae ca. 6 mm. longae e basi lata subulatae gla-

brae persistentes; folia mediocria breviter petiolata subcoriacea,

petiolo crasso ad 1 cm. longo glabro; lamina lanceolato-oblonga vel

ovato-oblonga 8.5-14.5 cm. longa 4-5 cm. lata breviter acuminata,

interdum tantum subacuta, basi acuta vel subacuminata, glabra,

supra in sicco brunneo-olivacea lucidissima, costa gracili prominente,

nervis venisque prominentibus et solemniter conspicuis, subtus fere

concolor opaca, costa prominente, nervis lateralibus utroque latere

ca. 15 angulo lato fere recto abeuntibus irregularibus subarcuatis

remote a margine arcuato-conjunctis, venulis prominulis arete re-

ticulatis; inflorescentia terminalis cymoso-corymbosa laxe multi-

flora basi trichotoma pedunculata ca. 8 cm. longa et aequilata,

ramis glabris valde adscendentibus, bracteis lanceolatis vel subu-

latis parvis, infimis interdum foliaceis sed parvis, flore centrali

cymulae sessili, lateralibus ad 2 mm. longe pedicellatis; hypanthium

obconicum 1 mm. longum, calyce truncate vix ultra 0.5 mm. longo;

278 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

corolla extus glabra, tubo gracili 5-6 mm. longo superne vix dilatato,

lobis patentibus oblongo-ovalibus apice obtusis vel rotundatis tu-

bum fere aequantibus; antherae lineares breviter exsertae ca. 3 mm.

longae; fructus globosus glaber 5 mm. diam. — Brazil: Monte

Alegre, serra, September 7, 1908, Oscar Martins 9828 (type in herb.

Mus. Paraensis; fragment in Herb. Field Mus.), 9827.

Morinda panamensis Seem. Bot. Voy. Herald 136. 1854.—

Mexico: Ubero, Oaxaca, in low forest, 30-90 meters, May. 1937,

L. Williams 9387. Local name Calabaza. A tree 15 meters high

or more, the crown somewhat rounded or spreading, fairly dense;

trunk fluted, 40-60 cm. in diameter, unbranched for 9 meters, the

bark dark brown; wood deep yellow. The species is new for the

Mexican flora.

Pagamea Duckei Standl., sp. nov. — Ramuli crassi teretes basi-

bus longe persistentibus stipularum occultis, internodiis brevissimis;

stipulae basi circumscissiles ca. 13-20 mm. longae ferrugineae

longitrorsum striatae extus dense breviter ferrugineo-hirtellae apice

laciniato-lobatae; folia majuscula petiolata subcoriacea, petiolo

crasso ca. 1 cm. longo dense breviter ferrugineo-piloso; lamina

anguste elliptico-oblonga 8.5-15 cm. longa 4-4.8 cm. lata sub-

abrupte breviter acuminata, acumine angusto attenuate, basin

versus paullo angustata et subabrupte longe decurrens, supra in

sicco fusca sublucida sparse setoso-hirsuta, ad nervos dense fer-

rugineo-hirsuta, nervis solemniter impressis, subtus fere concolor

ubique ad nervos densius pilis rigidulis ferrugineis pilosa, costa

gracili elevata, nervis lateralibus utroque latere ca. 11 angulo an-

gusto adscendentibus prominentibus versus apicem arcuatis mar-

ginem fere attingentibus, venis obscuris; inflorescentiae axillares et

pseudoterminales capituliformes densissime multiflorae ca. 1 cm.

longae et paullo latiores, pedunculo crasso complanato ca. 1 cm.

longo dense ferrugineo-piloso; calyx parvus dense villosulus, lobis

late ovatis obtusis; corolla extus dense breviter villosula, tubo fere

5 mm. longo superne paullo dilatato, lobis patentibus vel subre-

curvis tubo paullo brevioribus obtusis intus densissime pilis longis

albidis villosis.- — Brazil: Taruma-miry, campina cerrada, terra firme,

December 22, 1912, A. Ducke 12415 (type in herb. Mus. Paraensis;

fragment in Herb. Field Mus.).

Most closely related to P. plicata Spruce, but differing in the

dense, capitate inflorescence, in having the leaves acuminate and at

the base long-decurrent, and also in the somewhat different pubes-

cence of the leaves.

STUDIES OF AMERICAN PLANTS 279

Pagamea guianensis Aubl., var. typica Standl., var. nov.—

P. guianensis Aubl. PI. Guan. 1: 113. 1775. Folia omnino glabra

vel subtus tantum in axillis nervorum sparse barbata; corolla extus

glabra; pedunculi glabri vel breviter puberuli.

Pagamea guianensis Aubl. var. pilosa Standl., var. nov.—

Folia subtus sparse vel subdense, ad nervos longius densius, hirtella;

pedunculi dense hirtelli vel pilosi; calyx vulgo hirtellus, interdum

glabratus; corolla extus dense breviter hortella, rarius glabra.—

Brazil: Amazonas, Humayta, on plateau between Rio Livramento

and Rio Ipixuna, November, 1934, B. A. Krukoff 7083 (type in

Herb. Field Mus.). The following collections are in the herbarium

of the Para Museum: Campos east of Faro, August, 1907, Ducke

8^62; a small shrub. Regiao do Alto Ariramba, campina pantanosa

do jaramacaru, Ducke 11287. Regiao dos campos a E. de Faro,

Ducke 10657, a large shrub. Alto Ariramba, porto da Cachoeira

Terminus, matto do barranco d'um igarape", December, 1910, Ducke

11401; a tree with brown flowers. Regiao do Alto Ariramba, cam-

pinarana, porto do jaramacaru, ilha da matta pantanosa, December,

1910, Ducke 11338.

The new variety described seems to differ from the typical form

of P. guianensis chiefly if not wholly in pubescence, and there is

considerable variation in the quality and amount of pubescence in

the specimens cited. Most of the other species of the genus are

either quite glabrous or abundantly pubescent, but in this instance

I believe that the pubescence has no more than varietal significance.

Pagamea capitata Benth.- — The species has been collected at

various localities in British Guiana, and at least once in Surinam.

It may be reported also from Venezuela: Rio Cuquinan, December,

1909, Ule 8767 (herb. Mus. Paraensis).

Pagamea coriacea Spruce — The following Brazilian collections

may be reported for this rare species: Obidos, campina de areia ao

sul da Serra do Valha-me Deus, July, 1912, Ducke 12033; Rio

Madeira, Campina des Marmellos, March, 1902, Ule 6101; Rio

Mapuera, campinarana northeast of Taboleirinho, December, 1907,

Ducke 9129. Specimens ail in herb. Mus. Paraensis. Described as

a large shrub with black fruits.

Pagamea hirsuta Spruce — Known previously only from Spruce's

original collection. The following collection is in the herbarium of

the Para Museum: Caqueta, Cerro de Cupaty, parte superior, Alto

Rio Negro, November, 1912, Ducke 12288.

280 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Pagamea thyrsiflora Spruce — This species, also, has been known

only from the original collection, from San Carlos on the Rio Negro.

The following collection in the Para Museum is conspecific: Rio

Tapajoz, Bella Vista, campina do Perdido, February, 1917, Ducke

16786.

Palicourea roraimae Standl., sp. nov. — Frutex 1-2-metralis

omnino glabe'r, ramulis gracilibus subteretibus in sicco fuscis, inter-

nodiis brevibus vel elongatis; stipulae crassae suberectae persis-

tentes, vagina ca. 2 mm. longa in lobos 2 breves vix ultra 1 mm.

longos latos obtusos desinente; folia parva breviter petiolata co-

riacea, petiolo crasso ad 4 mm. longo; lamina lanceolato-oblonga

3.5-5.5 cm. longa 1-1.8 cm. lata breviter acuminata, basi acuta,

supra in sicco fusca vix lucida, costa tenera manifesta, nervis venisque

obsoletis, subtus pallidior brunnescens lucidissima, costa gracili

valde elevata, nervis lateralibus utroque latere 8-9 angulo lato

adscendentibus arcuatis marginem fere attingentibus, venulis pro-

minulis laxe reticulatis, subtus ubique dense minute pallido-puncticu-

lata; infloreseentia terminalis cymosa dense pauci- vel multiflora ca.

2.5 cm. longa et 1.5 cm. lata graciliter 3-5 cm. longe pedunculata,

basi trichotoma, ramis basalibus ebracteatis, ramis omnibus brevibus

erectis, bracteis conspicuis linearibus ad 12 mm. longis attenuatis,

floribus sessilibus; hypanthium breve, calyce vix 1 mm. longo, denti-

bus ovatis; corolla aurantiaca extus glabra 1.5 cm. longa in alabastro

apice rotundata, tubo superne crasso, lobis brevibus. — Brazil : Rorai-

ma, on slopes at 2,300 meters, December, 1909, E. Ule 8765 (type

in herb. Mus. Paraensis; fragment in Herb. Field Mus.).

The type collection was determined by Schumann as a new

species of Rudgea, which has remained unpublished.

Psychotria chaponiana Standl., sp. nov. — Frutex 3-metralis,

ramis gracilibus ochraceis rugulosis subteretibus dense minutissime

puberulis, internodiis brevibus; stipulae persistentes extus densis-

sime scaberulae in vaginam crassam 2.5-3 mm. longam connatae,

vagina subtruncata in lobos 4 erectos triangulari-subulatos vix

ultra 1 mm. longos desinente; folia inter minora petiolata firme

membranacea, petiolo gracili 6-12 mm. longo scaberulo; lamina

lanceolato-oblonga vel anguste elliptico-oblonga 7-11 cm. longa

2-3.5 cm. lata longe anguste attenuato-acuminata, basin versus

longe anguste attenuata, supra in sicco fusco-olivacea glabra sub-

lucida, nervis manifestis sed vix prominulis, subtus fere concolor,

primo densiuscule puberula, serius costa nervisque exceptis fere

glabra, costa gracili prominente, nervis lateralibus utroque latere

STUDIES OF AMERICAN PLANTS 281

ca. 16 angulo latiusculo adscendentibus arcuatis juxta marginem

arcuato-conjunctis; inflorescentia terminalis 2 cm. longe pedunculata

erecta paniculata ca. 6 cm. longa atque aequilata laxe multiflora,

floribus in cymulas trifloras dispositis arete sessilibus, ramis gracilibus

densissime minute puberulis omnibus basi bracteatis, bracteis pa-

ten tibus lineari-filiformibus usque 4 mm. longis persistentibus;

hypanthium ca. 0.5 mm. longum puberulum, calyce lato vix 1 mm.

Ion go extus sparse minutissime puberulo remote obscure dentato;

corolla alba 9 mm. lorga extus dense minute puberula, tubo cras-

siusculo sursum paullo dilatato, lobis ovali-oblongis vel triangulari-

oblongis tubo duplo brevioribus apice rotundatis vel obtusis, fauce

non barbato, corolla in alabastro apice rotundata; antherae lineares

4 mm. longae subexsertae. — Colombia: Chapon region, State of

Boyaca, in semi-open forest, 1,150 meters, May 7, 1932, A. E.

Lawrance 11 (type in Herb. Field Mus.; duplicate in U. S.

Nat. Herb.).

Psychotria Lawrancei Standl., sp. nov. — Frutex 2-2.5 m. altus,

ramis crassiusculis teretibus, novellis viridibus sparsissime minute

puberulis vel glabris, internodiis abbreviatis; stipulae persistentes

et incrassatae in vaginam ca. 3 mm. longam glabram connatae,

vagina apice fere truncata sed in lobulos 4 brevissimos desinente;

folia modica breviter petiolata membranacea, petiolo crassiusculo

vulgo 6-8 mm. longo glabro; lamina oblongo-bblanceolata 10-18 cm.

longa 3-6 cm. lata anguste acuminata, basin versus longe anguste

attenuata et decurrens, supra in sicco fusco-viridis sublucida gla-

bra, nervis manifestis sed vix prominulis, subrugulosa, subtus fere

concolor glabra, costa prominente gracili, nervis lateralibus utroque

latere ca. 11 angulo latiusculo adscendentibus arcuatis gracillimis

prominulis juxta marginem arcuato-conjunctis; inflorescentia ter-

minalis erecta cymoso-paniculata ca. 4 cm. longa atque 3 cm. lata,

ramis primariis basi ebracteatis sparse minute puberulis, inferioribus

basi incrassatis plus minusve reflexis, apicibus ramorum quoque

incrassatis, floribus parvis sessilibus aggregatis; hypanthium cy-

lindraceum 1 mm. longum glabrum, calyce fere aequilongo cam-

panulato truncato vel remote obsolete denticulate; corolla ochroleuca

extus glabra, tubo crasso fere campanulato 2 mm. longo ubique

aequilato, lobis late ovatis apice late obtusis reflexis tubo multo

brevioribus intus glabratis, fauce albo-barbato; antherae exsertae

oblongae 0.8 mm. longae. — Colombia: Region of El Humbo, State

of Boyaca, in high forest on steep banks, 1,050 meters, May 6, 1933,

A. E. Lawrance 788 (type in Herb. Field Mus.).

282 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

Psychotria limonensis Krause, var. angustifolia Standl., var.

nov. — A forma typica specie! non differt nisi foliis multo angustiori-

bus, lamina anguste oblongo-oblanceolata 19-26 cm. longa 4-5.5

cm. lata longe anguste acuminata, basin versus longe sensim at-

tenuata. — Guatemala: Finca Moca, Dept. Suchitepe'quez, in forest,

1,020 meters, January 7, 1935, Alexander F. Skutch 2073 (type in

Herb. Field Mus.; duplicate in herb. Arnold Arb.).

"A shrub 4.5 meters high; flowers white; berries red."

Psychotria Recordiana Standl., sp. nov. — Arbuscula 4-me-

tralis ut videtur dense ramosa, ramis gracillimis teretibus ochraceis,

novellis viridibus dense minutissime puberulis, internodiis brevi-

bus; stipulae persistentes in vaginam subinflatam extus dense pu-

berulam 3-4 mm. longam connatae, vagina in lobos 4 erectos approxi-

mates lineari-attenuatos 4-5 mm. longos desinente; folia parva

petiolata membranacea, petiolo gracili 5-8 mm. longo minute pube-

rulo vel subglabro; lamina lanceolata vel oblongo-lanceolata 5.5-11.5

cm. longa 1.5-3 cm. lata, longissime angustissime attenuato-acu-

minata, basi acuta, supra in sicco laete viridis ad costam promi-

nentem breviter pilosula, aliter glabra, nervis vix prominulis, subtus

paullo pallidior sparse minutissime patenti-pilosula vel glabrata,

costa gracillima prominente, nervis lateralibus utroque latere ca.

15, nervo altero teneriore parallelo inter paria inserto, angulo fere

recto divergentibus arcuatis juxta marginem arcuato-conjunctis;

inflorescentiae terminales paniculatae erectae laxe multiflorae

graciliter 1.5-4.5 cm. longe pedunculatae 3-7 cm. longae et aequilatae

basi trichotomae, ramis gracillimis densiuscule minute puberulis

omnibus basi bracteatis, infimis patulis vel subreflexis, bracteis

primariis lanceolato-subulatis vel lineari-subulatis usque 1 cm. longis,

superioribus oblongis viridibus majusculis flores fere occultantibus,

floribus sessilibus aggregatis interdum subcapitellatis; hypanthium

minute puberulum; calyx 1.5 mm. longus ad medium dentatus, denti-

bus obtusis erectis extus puberulis; corolla 5-6 mm. longa, tubo

cylindraceo extus glabro, lobis oblongis obtusis extus puberulis

tubo duplo brevioribus; fructus juvenilis dense puberulus. — Ecuador:

Western cordillera of Quito, valley of Rio Salaya, 1,800 meters,

October, A. Rimbach 623 {type in Herb. Field Mus.).

"A small tree 4 meters high, in shade of forest. Flower 12 mm.

long, 7 mm. wide; corolla white; calyx colorless; stamens 5; style

3 mm. long, the stigma 2-lobate. Wood whitish. Bark light brown,

rather smooth." The species is named for Professor Samuel J.

Record, from whom the collection containing this plant was received.

STUDIES OF AMERICAN PLANTS 283

Psychotria Skutchii Standl., sp. nov. — Frutex gracilis 2.5 m.

altus, ramis teretibus, novellis viridibus densissime pilis brevibus

paten tibus sordidis pilosulis, internodiis brevibus; stipulae persis-

tentes in vaginam truncatam 1.5 mm. longam dense puberulam

connatae, vagina in lobos 4 aequilongos triangulari-subulatos erec-

tos remotos desinente; folia parva longiuscule petiolata membra-

nacea, petiolo gracili 7-15 mm. longo densissime patenti-pilosulo;

lamina anguste elliptico-oblonga vel oblanceolato-oblonga 5.5-9.5

cm. longa 2-3 cm. lata longiacuminata, basin acutam vel acumina-

tam versus sensim angustata, supra in sicco laete viridis ubique

dense puberula et ad costam patenti-pilosula, nervis conspicuis

prominulis, subtus paullo pallidior dense molliter patenti-pilosula,

costa gracili prominente, nervis lateralibus utroque latere ca. 13

tenerrimis angulo lato adscendentibus arcuatis prominulis juxta

marginem arcuato-conjunctis; inflorescentia terminalis erecta sessilis

vel ad 3.5 cm. longe graciliter pedunculata cymoso-paniculata

2.5^4.5 cm. longa et aequilata, basi trichotoma, ramis patentibus

vel subreflexis omnibus basi bracteatis, bracteis patentibus lineari-

attenuatis ad 5 mm. longis puberulis, ramis densissime patenti-

pilosulis, bracteis superioribus minutis filiformibus, floribus cymu-

losis sessilibus vel brevissime crasse pedicellatis; hypanthium ut

calyx densissime pilosulum vix 1 mm. longum, calyce ad 1 mm. longo

inaequaliter dentato, dentibus triangularibus acutiusculis; corolla

alba in alabastro apice late rotundata breviter patenti-pilosula,

tubo cylindraceo 6-7 mm. longo fauce parum dilatato non barbato,

lobis triangulari-oblongis obtusis ut videtur patentibus intus glabris;

antherae semiexsertae; stylus lobos corollae aequans. — Guatemala:

Oak woods, San Juan Ixcoy, Dept. Huehuetenango, 2,400 meters,

August 22, 1934, Alexander F. Skutch 1074 (type in Herb. Field Mus.;

duplicate in herb. Arnold Arb.).

Tocoyena hispidula Standl., sp. nov. — Ramuli crassiusculi sub-

teretes ferruginei dense vel sparse hispiduli, 'internodiis brevibus

striatis; stipulae persistentes triangulares 5-6 mm. longae acu-

minatae glabrae; folia mediocria brevissime petiolata crasse mem-

branacea, petiolo crasso ad 6 mm. longo; lamina elliptica vel oblongo-

elliptica 11-16 cm. longa 5.5-8 cm. lata ut videtur breviter acu-

minata, basi acuta vel abrupte acuta, utrinque sat dense hispidula,

opaca, costa gracili subtus elevata, nervis lateralibus utroque latere

ca. 10 angulo latiusculo adscendentibus arcuatis teneris; flores

numerosi apice rami dense capitato-aggregati sessiles vel subsessiles

glabri, hypanthio turbinato vix 5 mm. longo, calyce brevi 3 mm. lato

284 FIELD MUSEUM OF NATURAL HISTORY — BOTANY, VOL. XVII

remote inconspicue acute dentato; corollae tubus gracillimus 8.5-9

cm. longus teres ca. 2 mm. crassus, alabastris ovoideis acutiusculis,

lobis ovato-oblongis ca. 13 mm. longis acutis vel acutiusculis;

antherae semiexsertae. — Brazil: Rio Marapy, serrotes, campos,

May 15, 1903, A. Ducke 3574 (type in herb. Mus. Paraensis; frag-

ment in Herb. Field Mus.). Montealegre, Alto da Serra Itauajury,

rochedos no campo, April 25, 1916, Ducke 1607 8b.

In Schumann's key to species of Tocoyena in Flora Brasiliensis

this plant would run at once to T. bullata Mart., a species that dif-

fers in having conspicuously bullate leaves, and in most of its other

characters.

COMPOSITAE

Dyssodia puberula (Rydb.) Standl., comb. nov. Thymophylla

puberula Rydb. N. Amer. Fl. 34: 177. 1915.

THE LIBRARY OF THE

DEC 14 1937

UNIVERSITY OF ILLINOIS

UNIVERSITY OF ILLINOIS-URBANA