320 ORCHIDS OF THE SIKKIM-HIMALAYA. 
18. HABENARIA LEPTOCAULON, Hook. fil. Fl. Br. Ind. VI, 154. 
Whole plant 8 to 16 inches high. Stem slender, sheathed in the lower third. 
Leaves two, unequal, remote, the lower and larger narrowly elliptic, acute, much 
narrowed from below the middle to the long narrow sheath; length from 2 to 5 in., 
breadth about :75 in. or less; the upper linear-lanceolate, acuminate, sheathing at the 
base, half as long as the lower; stem above the leaves bearing two or three remote 
lanceolate acuminate unequal bracts °75 to 1 in. long. рие 1 to 3 in. long, 
few-flowered, lax. Flowers about ‘5 in. across (vertically); floral bract lanceolate, 
shorter than or equal to the slender curved grooved beakless erect ovary. Sepals 
sub-equal, oblong-elliptic, acute; the dorsal connivent with the petals, the lateral pair 
reflexed. Petals broader than the sepals, fleshy, lanceolate from a broad truncate 
base, sub-acute, falcate. Lip fleshy, longer than the sepals and petals, oblong-lanceolate, 
obtuse, entire, deflexed; spur much longer than the ovary, cylindric, slightly dilated 
towards the base and more so towards the apex, somewhat curved, minutely hispid 
inside. Column rather long. Anther-cells slightly separated, quite parallel; pollinia elliptic, 
tapering to both base and apex, each obliquely sessile on an elongate gland, truncate at 
both ends. Staminodes smooth, ovate, faleate, pointed, situated outside the bases of the 
anther-cells. Stigmas two, broadly oblong, somewhat curved, situated one on each side 
of the wide entrance to the spur. 
Sikkim, in the Lachong valley, at elevations of from 9, 000 to 11,000 feet; G. 
Gammie, Pantling No. 422; in flower during July and September. 
The colour of the flowers is green throughout. 
PrarE 421.—Habenaria leptocaulon, Hook. fil. А plant, of natural size. Fig. 1 ovary and flower, 
2 bract, ovary, column and lip, in profile, 3 column showing the anthers, staminodes and stigmas (8), 
4 the petals, 5 section of the spur, 6 pollinia; a// enlarged. 
19. HABENARIA OLIGANTHA, Hook. fil Fl. Br. Ind. VI, 154. 
Plant varying in height from З to 12 inches. Siem slender, sheathed at the base, 
tubers narrowly fusiform. Leaf usually solitary, oblong-oblanceolate, obtuse or acute, 
narrowed to the shortly sheathed base; length :1 to 4:5 in, breadth :35 to 1:5 in. 
Stem above the leaf and below the raceme with at least one linear-lanceolate acuminate 
bract, ridged. Spike 1:5 to 4 in. long, laxly-flowered. Flowers “4 in. across at the 
mouth (vertically); floral bracts linear-lanceolate, acuminate, herbaceous, the lower much 
longer than the flowers, the upper sub-equal to them. Sepals thin, their edges minutely 
ciliolate, sub-equal, elliptic-oblong, sub-acute; the dorsal вера! and petals connivent 
_ to form a hood, the lateral pair reflexed. Petals fleshy like the lip, as long as the 
sepals, ovate with broad truncate bases and somewhat gibbous at one side, sub-acute. 
Lip longer than the sepals and petals, ovate-lanceolate, blunt, entire, its margins slightly 
upturned near the base; spur about as long as the ovary, cylindric, with two faint 
ridges externally, slightly wider towards the apex, its interior shortly hispid. ^ Column 
broad at the base, tapering upwards. Anther-cells discrete, parallel, without tubes; 
pollinia clavate, sessile, the glands as long as the  pollinia, narrow, truncate at қ 
end; staminodes large, globose; stigmas two, globose, pointed. ; | 
