40 ORCHIDS OF THE SIKKIM-HIMALAYA. 
Sect. VI.—Formosz.—Stems tufted, erect, with coarse deciduous black hairs on the 
sheaths, Flowers solitary or in racemes, large, white, with faintly coloured 
lip; mentum usually long and funnel-shaped or conical, acute, straight or 
incurved. Lip sessile, its middle lobe often fimbriate on the margin or 
disc, 
Lip fimbriate; flowers less than 1 in. across . . . . . . . 10. D. longicornu. 
Lip not fimbriate; flowers З to 5 in. across. . . . . . . 11. D. formosum. 
Sect. VII.—EuvpENDROBIUM.—/S/ems elongated, stout or slender, cylindric, clavate or 
nodose. Leaves membranous ог coriaceous, persistent 
Flowers usually large, in lateral pairs fascicles or racemes, 
solitary, variously coloured, white yellow or purple. 
Stems usually with many, but never with less than two leaves. 
Lip not ealceolar. 
Lip not convolute, longer than broad. 
Lip without side lobes. 
Lip obovate . . . (x с, 
Lip elliptic, abruptly ішірді ы КОЕ: 75 
Lip with short 5. side € oblong, 
sub-acute . . м з ыы. ҖЕ 
Posterior part of the lip convolute into a tube, the 
anterior part expanded into a more or less orbicular 
open mouth. 
Disc not puberulous, mentum entire. 
Lip longer than broad, with broad convolute side 
lobes. 
Mentum bulbous, bracts small, sepals obtuse . 15. 
Mentum conical, bracts large, sepals acute . 16. 
Lip longer than broad, without side lobes . . 17. 
Lip as broad as long, without side lobes . . . 18. 
Disc of lip with a green-crested ridge, the anterior 
lobe crisped; mentum notched at the apex . . 19. 
Disc papillose; anterior part of lip trowel-shaped, 
not lobed; mentum conical . . 2 20. 
Dise tomentose; anterior js of dp obicia 
reniform, mentum blunt. . т NE 
Пір not convolute, the dise more or less papillose or 
fimbriate. 
Lip papillose (shortly fimbriate in Nos. 22 and 23). 
Lip longer than broad. 
Lip oblong or io with two lateral 
forward-pointing lobes; mentum blunt. 
Flowers white ; lip with no ridge, but 
its dise much thickened . . 90. 
Flowers golden-yellow; disc of lip with 
a central 3-grooved ridge . . . . 28. 
Lip broader than long or orbicular. 
Lip transversely oblong or reniform, 
not dobed ; flowers in fascicles . . 24, 
or deciduous. 
very rarely 
D. crepidatum. 
D. aduncum. 
D. candidum, 
D. amoenum. 
D. transparens. 
D. nobile. 
D. Pierardt. 
D. ramosum. 
D. heterocarpum. 
D. clavatum. 
D. stuposum. 
D. pauciflorum. 
D. chrysanthum. 
