bered. Pollinia 4, complanate, obliquely suborbicular. 
This little species appears to be without close allies. 
Whereas its vegetative aspect clearly suggests a member 
of the section Muepidendrum, the almost free lip is ab- 
normal and remarkable. 
The specific name is in allusion to the character of 
the lip. 
Cuzco: Prov. of Paucartambo, Pillahuata, epiphyte in rain-forest, 
at 3400 meters altitude, December 11, 1942, C. Vargas 3011 (Tyrr 
in Herb. Ames No. 63167). 
Epidendrum tenuispathum (C. Schweinfurth sp. 
nov. 
Herba elata, epiphytica. Caulis crassus, distichifolius. 
Folia lanceolata vel oblongo-lanceolata vel elliptico-lan- 
ceolata, acuta, basi amplexicaulia, late patentia. Inflores- 
centia terminalis, paniculata, basi spatha scariosa magna 
obtecta. Flores pro genere minores, perianthii partibus 
patentibus. Sepalum dorsale elliptico-oblanceolatum, 
subacutum. Sepala lateralia late et oblique elliptico- 
oblanceolata, dorso carinata cum carina in mucronem 
producta. Petala oblanceolato-linearia, leviter curvata, 
acuta. Labellum columnae valde adnatum; lamina prope 
medium profunde trilobata; lobi laterales rotundato- 
dolabriformes: lobus medius brevis, latus, retusus cum 
mucrone in sinu; discus basi bicallosus. Columna arcu- 
ata, antice supra valde dilatata. 
Plant tall, epiphytic, 0.6-0.9 m. high, according to 
the collector’s notes. Stem stout, altogether concealed 
by the sheaths of the leaves. Leaves distichous, appar- 
ently numerous (six in the specimen present), 4 cm. or 
less apart, widely spreading, lanceolate to elliptic-lanceo- 
late or oblong-lanceolate, acute and minutely apiculate, 
amplexicaul below, chartaceous in the dried specimen, 
about 8-18 cm. long, 2.3-2.9 cm. wide. Inflorescence 
terminal, erect, loosely paniculate, apparently lacking 
[ 146 ] 
