Peristylus lawii Wight
In Icon. Pl. Ind. Orient. 5: t. 1695 (1851)
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Habenaria lawii (Wight) Hook.f. in Fl. Brit. India 6: 162 (1890)
Ecology Herbs 15-45 cm in hight.
Tubers 1-2, oblong-obovate, somewhat flattened.
Stem terete, brownish-white, stout, sheathed; sheaths,2-3, each 1.5-3 cm in length, broad-mouthed, oblong.
Leaves 3-5 clustered above the middle of the stem, 3-13x 2-4 cm, not reduced to bracts above, sheathing at the base, lanceolate or oblong-lanceolate, acute, entire: minutely papillose, glabrous, grass-green above, pale dull green beneath Inflorescence in somewhat lax spikes, 8-18 cm long; peuncle 4-7 cm long, ebracteate, terete, green,.
Flowers sessile, white tined with greenish-yellow, bracteate.
Bracts 5x2mm lanceolate, acuminate entire, shorter or longer than the flowers, 1-nerved,
Sepals subequal, white;
dorsal sepal 3x2 mm ; ovate-oblong, obtuse or subretuse, entire. .1-nerved, concave,
lateral sepals 3.5x 1.5 mm oblong, obtuse, subconcave conduplicate, entire, glabrous, 1-nerved,.
Petals 3.5x2.5 mm obovate in outline, retuse.
Labellum: 3.5x2.5mm; 3 lobed about the middle, clawed,; claw slightly elongate, concave; lobes subequal, lateral ones about 1mm long, rounded, curved on the outer margins, subacute, slightly longer than the straight obtuse midlobe.
Spur small, scrotiform, 1mm in diameter with a circular depression all round.
Column very short, greenish-white.
Ovary pale green, ribbed, about 5 mm long.
Capsule1-1.5 cm long fusiform, turgid, ribbed; beak 3-5 mm long.
Flowering: July.
Fruiting: September.