Ayvacucuo: Prov. Huanta, Choimacota Valley, at 3000 meters alti- 
tude, in ‘‘evergreen mountain forest, ”’ February 28—March 10, 1926, 
A. Weberbauer 7536 (Vyrr in Herb. Field Mus. No. 562446: [sorype 
in Herb. Ames No. 61558). 
Epidendrum latisegmentum (C. Schweinfurth sp. 
NOW. 
Herba magna, epiphytica, laxa. Caulis elongatus, arcu- 
atus, ramis cum strictis, vaginis tubulatis evanidis omnino 
tectus. Folia in caulis parte superiore, elliptico-lanceolata, 
acuminata, pauca. Inflorescentia brevis, racemosa, pauci- 
flora. Flores magni, flavo-virides. Sepalum dorsale ovali- 
obovatum, subacutum. Sepala lateralia oblique obovato- 
ovalia, acuta. Petala cuneato-spathulata, obtusa vel 
subacuta. Labellum columnae valde adnatum,; lamina 
simplex, obovato-reniformis, carnosa, omnino dense cellu- 
lari-papillosa. Columna abbreviata, crassa, sursum dila- 
tata. Pollinia quattuor, valde complanata. 
Plant rather large, lax, epiphytic. Roots fibrous, stout, 
elongate, rigid. Stem elongate, arcuate, with scattering 
strict or appressed branches, apparently wholly concealed 
by close tubular sheaths which are scarious and evanes- 
cent below and leaf-bearing above. Leaves commonly 
contined to the upper part of the stems or branches, dis- 
tichous, very loose below but approximate above, elliptic- 
lanceolate, spreading, acuminate, cuneate at the clasping 
base, up to 17 cm. long (apex incomplete in my specimen) 
and 8 cm. wide, the lower blades much smaller, appar- 
ently four in number, submembranaceous. Lnflorescence 
terminal, racemose, apparently 5-flowered (broken in my 
specimen), subtended by a short acuminate conduplicate 
spathe which is about 13 mm. long. Flowers large, yel- 
low-green. Dorsal sepal oval-obovate, about 19 mm. long 
and 18 mm. wide, subacute, 6-nerved (the lateral nerve 
branching on one side). Lateral sepals obliquely obovate- 
oval, acute, about 21 mm. long and 15 mm. wide, 7- to 
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