MICROSTYLIS: 87 
О. acaulis iiook, Bot. Mag. 5056 (not of Grif.) 0. trilobata Griff. Notul. iii, 273. 
Malaxis ensiformis Smith in Rees Encycl; Reichb, f. in Walp. Ann, vi, 212 
(excl, syn.). 
Dehra Dun, chiefly ou sål trees, Falconer, King, Mackinnon; and up to 3,000 feet 
on the adjacent Himalaya, flowering during November. It extends eastward to Nepal, 
Sikkim and the Khasia Hills, and has recently been discovered on the Nilgiris by 
Mr. R. Proudlock. 
2. Microstylis Nutt. 
Terrestrial or epiphytic, rarely saprophytic, often pseudo-bulbous. eaves one or 
more, rarely absent, membranous, plicate, continuous with their sheaths. Flowers small, 
resupinate, in terminal racemes. Sepals spreading or recurved, subequal. Petals narrower 
than the sepals but about as long. Lip adnate to the base of the column, usually flat, 
basal lobes large, sagittate, produced upwards, orcup-shaped with small lobes, or with- 
out basal lobes; the apex emarginate, 2—3-lobed, erose or entire. Column usually very 
short (long in M. congesta), with two short spreading arms. Anther subterminal, bilocular ; 
pollinia 4, ovoid or obovoid.— Species about 60, in temperate and tropical regions. 
Lip slightly convex, basal auricles sagittate and projecting upwards :— 
Leaves 3—4, ovate-lanceolate, acuminate is : 1. M. Walch. 
Leaves usually 2, at the base of the scape, ovate or suborbis 
cular, obtuse - et Ši im 2. M. Mackinnont. 
Lip concave, entire, its apex او‎ into a beak, basal auricles absent :— 
Leaf one T ewe on A s 3. M. cylindrostachya 
Leaves two 25 NES Td ote P 4. M. muscifera. 
1. MICROSTYLIS ۲۷ ۸۲7708671 гаг in Wall. Cat. 1938. 
Stem about 7*5 cm, long, with a few sheaths below. Leaves three or four, 7:5 to 
11۰5 em. in length and 3°5 to 65 cm. broad, thinly membranous, ovate-lanceolate, acute 
or acuminate, narrowed to the sheathing base, the upper ones sessile, the lower with 
sheathing petioles, edges undulate. Jnjlorescence 2—3 dm. long; peduncle shorter than the 
raceme, ribbed; raceme laxly many-flowered; floral bracts lanceolate, half the length of 
the stalked ovaries. Flowers yellowish-green, often tinged with purple, about 13 mm. 
long. Sepals oblong, the dorsal subacute, the lateral broader and obtuse. Petals linear, 
obtuse, with recurved margins like those of the sepals. Lip slightly convex, narrowly 
ovate in general outline; basal lobes or auricles lanceolate, their inner edges straight, 
and with an intervening space. Тір not constricted so as to form a distinct anterior 
lobe, its apex fat or slightly ineurved at the notch. Column with very fleshy rounded 
arms, Lindl, Ger. and Sp. Orch. 20; Hook. f. Fl. Br. Ind. у, 686; іп Ann. Roy. 
Bot. Gard. Cale. vol. v, part 1, t. 2, figures 1 and 2 (excl. syn. М. biloba) ; King 
& Pantl. in Ann. Roy. Bot, бы. Cale. vol. үш, р. 16, plate 18; Collett in Fl, Sim, 
491, fig. 162. №4428 acuminata Don Prod. 29, 
Western Himalaya from Pangi to Kumaon between 4,000 and 7,000 fest, 
becoming more abundant eastwards, flowering during the rainy season. It extends 
eastwards to Sikkim and the Khasia Hills, and is found also in Ceylon. | 
