RHYNCHOSTYLIS. 113 
Siwalik range, King; Dehra Dun, very common on mango trees; plentiful up to 
4,000 feet on the outer ranges of the Western Himalaya, from the Kangra Valley in 
the Punjab to Kumaon, flowering during June and July. It extends eastwards to Nepal 
Sikkim aud Assam. 
2. RIDES ODORATUM Lour. Fl. Cochin. 525. 
Stem very stout. Leaves 1'5 to З dm. long and 4 to 5:5 cm. broad, oblong, flat, 
keeled, tapering slightly to the blunt unequally bilobed apex, not contracted at the 
sheathing base. acemes supra-axillary, deflexed, as long as or longer than the leaves, 
many-flowered; peduncle short, stout, with short distant sheaths, Flowers about 9:5 сш. 
long, white spotted with pink, very fragrant; floral bract broad, sheathing, blunt, much 
shorter than the stalked ovary. Sepals unequal, obtuse, spreading, the dorsal one elliptic- 
ovate; the lateral раг somewhat larger. Petals oblong, falcate, shorter than the sepals, 
Lip adnate to the short foot of the column; spur large, funnel-shaped, curved forwards ; 
lateral lobes very shallow, truncate, erose ; terminal lobe linear, emarginate, lying 
between the edges of the lateral lobes. Anther triangular, depressed, beaked; pollinia 
globose, caudicle linear, gland quadrate, Capsule fusiform, about 3 cm. long, Lindl. 
Gen, & Sp. Orch. 239; in Journ. Linn. Soc, їп, 41; Bot. Mag. 4139; Walp, Ann. 
vi, 898; Lindenia t. 14 (var.); Hook, f. Fl. Вт, Ind. vi, 47; King % Pantling in 
Ann. В. Bot, Gard. Calc. viii, 212, t. 282; Rolfe in Journ. Linn. Soc. xxxvi, 35. 
ZErides cornutum Roxb. Hort. Beng. 63; Fl. Ind. iii, 472; Bot. Reg. t. 1485. 
Western Himalaya, 7. Thomson; Dehra Dun, King, Gamble, Mackinnon; sub. 
montane tract of Bahraich district in N. Oudh, Duthie’s Collector No. 23868; Garhwál, 
Falconer, Duthie’s collector Nos, 25810, 25818; Kumaon, Colonel Davidson. Flowers 
during June and July, This species extends eastwards to Nepal, Sikkim and E. Bengal; 
it is found also in Malaya and China. 
23. Rhynchostylis Blume. 
Epiphytic. Stem elongate, stout, leafy, Leaves very coriaceous, linear-oblong, 
truncately or bluntly bilobed at the apex. acemes pendulous, many-flowered: 
Flowers brightly coloured, Sepals and petals spreading, broad, obtuse, the petals nar- 
 rower than the sepals. Zip adnate to the short foot of the column, the Aypochile 
forming a deep wide pubescent sac without side lobes; the epichile obovate. acute, 
concave, the margins erect. Column short, stout, dilated at the base and with a very 
short foot. Stigma small. Anther terminal, rounded; pollinia 2, elliptic, attached by 
a slender long caudicle to a small oblong gland.—Species 2 or 38, Indian and 
Malayan. 
15۲1080: 7773ا‎ RETUsA Blume, Bijdr. 286, t. 49. 
Stem stout 1 to 2 dm. long, enveloped in the sheaths of decayed leaves. 
Leaves 1:5 to 455 dm. long and about 2:5 em. broad, curved, keeled, premorse or bluntly 
bilobed. Racemes longer than the leaves, cylindric, densely fiowered; peduncle short 
with a few small scattered sheaths. Flwers 2 em. асговв, white or pink with purple 
or pink markings. Lateral sepals broadly ovate, obtuse or apiculate, the dorsal one oblong, 
