SmMiTH—NEW ORCHIDS. 205. 
basalia duo fere opposita in partem brevem vaginantem angus- 
tata; lamina 3.5-4 cm. longa, 8-10 mm. lata, oblonga vel ob- 
longo-lanceolata apice angustata breviter apiculata. Bractea 
maxima cire. 4.5 cm. longa oblanceolata apiculata involuta; in 
axilla bracteae oritur flos solitarius caulem terminans. Flos 
laete flavus longe stipitatus, ovario circ. 1 cm. longo, stipite 
erecto valido ad 2.5 cm. longo, calcare circ. 2.5 cm. longo cylin- 
drico fere recto stipiti subparallelo atque approximato; sub an- 
thesi floris stipes atque calcar in bractea involuta fere omnino 
abscondita. Sepala dissimilia; dorsale oblongum circ. I cm, 
longum 4 mm. latum supra angustatum apice ipso apiculata ; 
lateralia falcata, 1.4 cm. longa, basi ovata ibique 3 mm. lata, 
supra sensim in apicem acuminatum angustata, erecta post dor- 
sale retro projecta. Petala late ovata circ. 1.2 cm. longa, 7 mm. 
lata, apice obtusa, basi obliqua, uno latere ascendente, altero 
latere auriculatim extenso. Labellum deltoideum, 1.2 cm. 
longum, basi 1.2 cm. latum, subintegrum marginibus paulo un- 
dulatis, per costulam mediam incrassatum, basi ad os calcaris 
sulco parvo mediano praeditum. Gynostemium circ 
altum, antherae locellis magnis parallelis approximatis infelic- 
iter in spec. nostro vacuis, canalibus brevibus, polliniis non visis, 
staminodiis parvis ovatis, processubus stigmaticis ut videtur nul- 
lis, stigmate sub rostello et supra os calcaris posito. 
“SB. Tibet :—On Doker-la, Mekong-Salween divide, Tsar- 
ong province, in open alpine pasture. Lat. 28° 20’ N. Alt. 12- 
13,000 ft. Plant of 3-5 inches. Flowers bright yellow, spur a 
shade darker. August 1917.’”’ G. Forrest. No. 14,738. 
The material of this very interesting plant is unfortunately 
very scanty and I have not succeeded in making a satisfactory 
analysis of the structure of the gynostemium. The pollinia 
were absent from the flower examined. The whole structure 
and appearance of the flower recalls H. camptoceras, Rolfe in a 
general way but it is not closely akin to that species. Mr Forrest 
on this present expedition may be able to supplement the 
material. 
Habenaria constricta, Hook. f. 
Peristylus constrictus, Lindl. 
‘West China :—Szemao, N.W. grass mountains at 5,000 ft. ; 
white flowers.’ A. Henry. No. 13,126. 
“Divide between the Shweli and Tengyueh valleys, Yunnan, 
in open situations on the margins of scrub. Lat. 25° ro’ N- 
Alt. 67,000 ft. Plant of 20-28 inches. Flowers white non- 
fragrant. July ror2.”” G. Forrest. No. 8625. 
"Not previously recorded from China. 
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