> a 
206 
Sprc. Cuar. Stem erect, simple: leaves linear or oblong-lan- 
ceolate, attenuated at the base, acuminated, serrated : teeth bristly 
at the apex: peduncles 6-8, erect, elongated, 10-15-flowered : 
bracts caducous: sepals obliquely ovate, awnedly acuminate : lip 
conically saccate, attenuated into a slender, elongated spur: flow~ 
ers rose-coloured. 
Silhet mountains, 
(77) I. tincrns. (Edgw.) 
Ident. Journ. Proc, Linn. Soc. IV. p. 151.—Edgw. in Linn. 
Trans. XX. p. 41. 
Spec. Cuar. Stemerect, slender, branched: leaves membrana~ 
ceous, ovate or lanceolate, acuminated at both ends, narrowed at 
the apex, crenated: teeth bristly at the base : peduncles numerous, 
lateral and somewhat terminal, very slender, erect, many-flowered : 
pedicels capillary: sepals small, ovate, obtuse: sac of the lip con- 
ical, gradually attenuated into a straight or curved spur: vexillum 
orbicular, mutic at the back: terminal lobe of the wings caudate: 
flowers small, yellow. 
Khasia mountains, Silhet, flowering in the rainy season. 
(78) I. ruprocrras. (Dec.) 
Ident, Journ. Proc. Linn. Soc. 1V. p. 152.—Dec. prod. I. p. 
688. 
Syn. I. longicornu, Roxb. fl. Ind. (Ed. Wall.) I. p. 462.— 
I. odorata, Don. prod. p. 213. 
Spec. Cuar. Quite glabrous: stem erect, simple or branched, 
leafy: leaves ovate or lanceolate, short-petioled, bristly-serrate : 
peduncles axillary and somewhat terminal, erect, slender: bracts 
ovate-lanceolate, acuminated: sepals middling-sized, broadly ovate, 
subulate-acuminate : lip infundibuliform attenuated into an incurv- 
éd or straight, very slender spur: capsule slender, linear-clavate ; 
flowers orange-coloured, purple, white or purple-spotted. 
Khasia mountains, Silhet, flowering in the rainy season. There 
are seven or eight varieties of this species, all of which have differ- 
ent coloured flowers. 
GENUS Il. HYDROCERA. 
Pentandria Monogynia. Sex: Syst: 
Deriv. From Hydor, water, and Keras, a horn. 
Gen. Cuar. Herbaceous, water-plants with angular stems: 
sepals 5, distinct, coloured: petals 5, unequal, distinct, the upper 
one arched: filaments connate at the apex: anthers 2-celled, 
opening at the apex: stigmas 5, sessile, acute: fruit succulent, 
drupaceous, 5-angled, 5-furrowed, 5-celled: nut hard and bony: 
seed solitary. 
