98 CXLVIII. ORCHIDEX. (J. D. Hooker.) [ Cystorchis. 
raceme 4-6 in., glandular-pubescent; flowers about 4 in. long; lateral sepals very 
gibbous at the base.—Named by Mr. Ridley. The flowers in the specimen he has 
kindly sent are far too young for analysis. 
83. HERPYSMA, Lindl. 
A terrestrial leafy herb; stem stout, erect. Leaves ovate-lanceolate, 
petioled, membranous; sheaths very large, hyaline. Flowers in a dense 
short sessile spike. Sepals subequal free; dorsal forming a hood with 
the oblong petals. Lip adnate to the sides of the column, spreading, 
spur elongate, straight, exposed, tip 2-fid. Column short, not appendaged 
in front; stigma anticous ; rostellum short, erect, 2-fid ; anther sessile, erect, 
linear-oblong, 2-celled; pollinia narrow, tipped with 2 hard lanceolate 
appendages or glands, pollen grains flattened. 
H. longicaulis, Lindl. in Wall. Cat. 7389; in Bot. Reg. under 
t. 1618; Gen. & Sp. Orchid. 506; in Journ. Linn. Soc. i. 178, 190. 
Eastern HIMALAYA; Nepal, Wallich Sikkim, alt. 3-4000 ft., J. D. H. &. 
Kuasia Mrs., alt. 4500 ft., Clarke. ; 
Stem 6-12 in., elongate and creeping below, then ascending, as thick as a swans 
quill or less, clothed below with the white, truncate leaf sheaths 2-1 in long. 
Leaves 2-3 in., membranous, shortly petioled. Spike 1-2 in., pubescent; bracts 
3-4 in. ovate-lanceolate; flowers with ovary rather longer, suberect, pale pink ; 
sepals $ in. long, 5-nerved, and shorter petals obtuse; lip shorter than the sepals, 
subpanduriform, reflexed from the middle, strongly 5-nerved, disk with 2 flattish 
calli about the middle, and a thick lamella extending to the rounded tip; spur 
longer than the blade, strongly nerved; base of white column contracted below the 
broad pulvinate stigma.—I do not find the two lamella in the spur, which is longitu* 
dinally grooved or infolded at the back. 
84. ODONTOCEIILUS; Blume. 
. Habit and character of Anectochilus, but sac or small spur of the lip 
hidden between the more or less connate bases of the lateral sepals.— 
Species about 12, Indian, Malayan and Pacific. 
The pollen varies greatly in structure in this genus. The species are most difficult 
of analysis and definition from dried specimens. Myrmechis, Blume, is omiy 
distinguishable by the fewer often erect flowers and stem with numerous sma 
eaves, 
* Stem stout, leafy, Flowers solitary or very few. (MYRMECHIS, BL) 
l. O. macranthus, Hook. f. Ic. Pl. ined.; leaves ovate acumi- 
nate, flowers very large solitary erect, claw of lip entire, margins involute, 
limb small orbicular, 
PERAK, Scortechini ; on Maxwell's Hill, Wray. -Jed 
Stem 2-3 in., from a nodose procumbent base. Leaves ł in., shortly petiol ` 
Flower white, nearly 1 in. long, with a sheathing bract on the very short peduncles 
sepals erect, lateral linear-oblong from a gibbous base, l-nerved; dorsal ovate-lan 
ceolate, long-acuminate; petals falcately dimidiate-ovate, long-pointed ; sac of lip 
subglobose, enclosed calli small; limb shortly exserted; column very short, fronta’ 
appeudage erect lanceolate; rostellar arms very long, slender ; anther linear-lanceo 
late; pollinia clavate, united caudicles long slender, gland elongate.—Resem 
Myrmechis glabra, Blume of Java, but the narrower flowers, long anther, pollen an 
rostellar arms at once distinguish it. 
