quite misleading when compared with a photograph of 
the type, with the floral analysis above cited, and with 
several Peruvian collections referable to this species, it 
seems desirable to correct the original diagnosis. 
Plant epiphytic, variable. Roots fibrous, stout (not 
filiform), elongate. Stems loosely branching, up to more 
than 1 meter long according to collector’s notes, ascend- 
ing or arcuate (apparently not suberect as stated), entirely 
concealed by tubular sheaths which are scarious leafless 
and evanescent in the lower portions and leaf-bearing 
above. Leaves three to five in groups, distichous, more 
or less congested at the summit of the stem or on the 
short lateral branches, elliptic or oblong-elliptic to oblong- 
lanceolate (not ligulate), acute to subobtuse, up to 11.8 
em. long and 2.6 em. wide, clasping at the base. Inflo- 
rescence racemose, at first more or less erect, becoming 
flexuous or pendent in anthesis, up to 18- (not 6-8) flow- 
ered, rather loose. Floral bracts ovate or ovate-lanceolate 
(not elliptic). Flowers green or greenish white to yellow. 
Dorsal sepal ovate-elliptic (not oblong), up to 1.8 (not 
1.1) em. long and 7.5 mm. wide, acute (not acuminate). 
Lateral sepals obliquely ovate-lanceolate, rarely elliptic- 
lanceolate (not oblong), acuminate, up to 2 (not 1.25) 
em. long and 9 mm. wide, commonly with a conspicuous 
dorsal keel. Petals distinctly shorter than the dorsal sepal 
(not subequal), acute or subacute (not short-acuminate). 
Lamina of lip suborbicular-cordate to reniform, lightly 
(not sharply) retuse, up to9 mm. long in the middle and 
1.5 cm. wide. 
This species is apparently rather widely distributed in 
Peru, being recorded from the Departments of Apuri- 
mac, Huancavelica, Hudnuco and Junin (type), at alti- 
tudes ranging from 800 to 3100 meters. 
Epidendrum nocturnum Jacquin var. minus 
Cogniaux in Bull. Soc. Roy. Bot. Belg. 43 (1906) 823. 
[ 289 ] 
