dorsale valde cucullatum et cum petalis galeam formans, 
lanceolato-ellipticum, obtusum, circiter 1.57 cm. longum 
et 5 mm. latum expansum, trinervium. Sepala lateralia 
oblique oblongo-lanceolata, subacuta, circiter 1.52 em. 
longa et 5 mm. lata. Petala sepalo dorsali agglutinata, 
oblique spathulato-oblanceolata, subobtusa, circiter 1.5 
cm. longa et supra 4 mm. lata. Labellum albidum, car- 
nosum, columnae inferne adnatum, portio libera in partes 
duas divisa; pars posterior tubulari-involuta, comparate 
magna, utrinque late rotundata cum apice subacuta, cir- 
citer 9 mm. longa; pars anterior parva, abrupte reflexa, 
ex ungue brevissimo in laminam transverse oblongo- 
ellipticam, triangulari-acutam dilatata, circiter 8.2 mm. 
longa et 6 mm. lata; calcar ovarium pedicellatum paulo 
excedens, anguste cylindraceum, circiter 2.6 cm. longum, 
in portionem superiorem semi-ellipsoideam abrupte dila- 
tatum. Columna brevis, supra sensim dilatata, circiter 
12.7 mm. alta, cum anthera elongata circiter 8 mm. longa. 
This species has two rather near allies. It differs from 
Erythrodes clavigera (Reichb.f.) Ames in having much 
larger flowers, dissimilar lip and nearly twice longer spur. 
It is separable from EF. cylindrostachys Garay in having 
much longer and more slender roots, much broader 
leaves, larger flowers and a different lip. 
VENEZUELA: State of Bolivar, Tirep6n-tepui, at 1100-1200 meters 
altitude, terrestrial in slope rain forest between Base Camp and Camp 
2, January 3, 1953, John J. Wurdack 34024 (Tyrer in Herb. Ames 
No. 69537). 
Pleurothallis coffeicola Sch/tr. in Fedde Repert. 
27: 50. 1929; Pabst in Orquidea 22: 4, t., 1960. 
A detailed description of this species, of which the 
Venezuelan examples show considerable variation from 
the type, is here appended, together with a carefully pre- 
pared illustration. 
Plant medium-sized, epiphytic, rhizomatose. Rhizome 
[9 ] 
