403 
Seec. CHar. Quite glabrous: stem thickish, simple or branch- 
ed at the base: leaves petioled, ovate or lanceolate, acuminated, 
obtusely serrate, without glands: racemes shorter than the leaf, 
6-8-flowered : peduncle flexuose : bracts oblong: pedicels slender : 
larger sepals obliquely ovate, acute: lip boat-shaped : spur short- 
ish, incurved, as long as the flower: vexillum small, orbicular : 
posterior lobe of the wings largest, broadly semi-orbicular, obtuse : 
flowere deep violet. : 
Khasia mountains, Silhet, flowering from June to October. 
(66) I. navirtora. (H. f. & 7.) 
Ident. Journ. Proc. Linn, Soc. IV. p. 189. 
Spec. CHar. Stem low, puberulous: leaves petioled, lanceo- 
late, acuminate, crenate serrated, very often with bristly glands at 
the base, glaucous beneath: peduncles erect, thick, 2~3-divided or 
simple: bracts remote, lanceolate: sepals broad-ovate, acuminate : 
lip boat-shaped, abruptly contracted into a straight, or slightly 
curved, slender, elongated spur: vexillum winged at the back; 
flowers pale-rose or violet. 
Khasia mountains, Silhet, flowering in October., 
(67) I. purcura. (H. f. & T.) 
Ident. Journ. Proc. Linn. Soc. IV. p. 139. 
Spec. Car. Low plant, quite glabrous: stem simple: leaves 
- thickish, petioled, elliptic or narrow-lanceolate, acuminate, serrated, 
pale beneath: peduncles erect, 2—3-divided or simple: bracts dis- 
tant, lanceolate: sepals broad-ovate, acuminated: lip broad infun- 
dibuliform : attenuated into a conical spur which is circinate at the 
apex: vexillum winged at the back: flowers pale-rose or straw- 
coloured, streaked with red. 
Khasia mountains, Silhet, flowering from September to Novem- 
* ber. 
(68) I. puserura. (Dec.) 
" Ident. Journ. Proc, Linn. Soc. IV. p. 141.—Dec. prod. I. p. 
687. 
Syn. I. mollis, Wall.—Roxb. fl. Ind, II. p. 461.—I. hispidula, 
Benth. 
Engrav. Wall. pl. As. Rar. IT. t. 193. 
' Spec. Cuar. Erect; stem elongated, simple or branched : whole 
plant more or less pubescent or glabrous: leaves attenuated into 
the petiole, elliptic or ovate-lanceolate, acuminated at both ends, 
crenated, without glands: pedicels bracteolated, 1—4-flowered, soli- 
tary or twin, slender, erect, axillary and somewhat terminal, pubes- 
cent: larger sepals ovate-acuminate : border of the lip boat-shaped ; 
