minute erosis et racemo paucifloro et sepalis quinquener- 
vis et labello crassiore a typo differt. 
Plant apparently separable from the type by its slen- 
der branched stem (with branches ascending or suberect), 
by its small leaves (up to 2.8 em. long and 6mm. wide) 
with finely erose margins, by the small simply racemose 
few- (up to 6-) flowered inflorescences, by the distinctly 
d-nerved sepals and by the more fleshy lip. 
Cuzco: Proy. Urubamba, on trail from Puyupata to Sayacmarea, at 
5600 meters altitude, epiphytic, flowers orange-red, August 5, 1942, 
Vargas 2894 (Tyee in Herb. Ames No. 61885). 
Epidendrum birostratum C. Schwein/furth sp. nov. 
Herba epiphytica, basi lateraliter pauciramosa. Caulis 
vaginis tubulatis arctis supra foliiferis omnino celatus. 
Folia disticha, adscendentia, oblonga vel lineari-oblonga, 
subacuta, basi amplectentia. Inflorescentia terminalis, 
racemosa, pendula, laxius pluriflora. Flores satis parvi, 
‘ammosi, segmentis late patentibus. Sepalum dorsale el- 
liptico-oblongum, acutum. Sepala lateralia ovato-lanceo- 
lata, longe mucronata, concava. Petala obovato-elliptica 
vel late spathulato-cuneata, subobtusa. Labellum colum- 
nae valde adnatum; lamina trilobata, basi cordata; lobi 
laterales oblique rotundato-dolabriformes ; lobus medius 
porrectus, subquadratus, apice truncato tridentato. Col- 
umna brevis, crassa. 
Plant epiphytic, over 56 cm. high (incomplete in my 
specimen). Roots fibrous, glabrous, stout, whitish, sim- 
ple. Stems with a few strict short branches in the lower 
portion, entirely concealed by close, tubular, imbricating 
sheaths which become scarious and evanescent in the 
lower portion and are leat-bearing above. Leaves numer- 
ous, distichous, ascending, oblong or linear-oblong, sub- 
acute with a caducous apicule, clasping at base, up to 12 
cm. long and 1.8 ¢m. wide, subcoriaceous, with the mar- 
gins minutely cartilaginous-crenulate. Inflorescence ter- 
[ 83 | 
