Saccolabium.] cxxxvr. orchide^e. 171 
white, side-lobes blunt, midlobe reniform hastate, spur horn¬ 
shaped curved blunt, keels in spur 2 pubescent. Column short 
red. Anther yellow. Rostellum long, deeply bifid. Hab. Perak, 
Tambun near Ipoh (Ridley). 
(23) S. tenuicaule Hook. fil. F.B.I. vi. 360; Ann. Bot. Gard. 
Calc. v. 49, i. 74; Ridl. Mat. i. 161. 
Stems slender, 1 ft. long, flexuous. Leaves linear narrow acute, 
3 in. long, *12 to -36 in. wide; sheaths -25 in. long. Flowers 2 or 3 
on a short tubercle about -12 in. long, yellow or white. Upper 
sepal lanceolate acute, laterals ovate acute. Petals ovate acute. 
Lip side-lobes oblong acute, midlobe much longer, linear bifid; 
spur thick curved blunt swollen at tip; no calli. Pollinia crescent¬ 
shaped, caudicle linear with 2 arms above. Hab. Selangor, Batu 
Caves. Perak (Scortechini); Gunong Batu Putih (Wray). Penang 
Hill (Curtis). 
(24) S. miserum Ridl. Journ. Linn. Soc. xxxii. 359; Mat. i. 
162. 
Stem over 1 ft. long, 1 to -12 in. through. Leaves linear, 5 in. 
■ong, *25 in. wide; sheaths -5 in, long. Racemes very short, 3- to 
4-flowered. Flowers very small yellow, lip white. Sepals elliptic- 
ovate, laterals a little broader. Petals smaller lanceolate-oblong. 
Lip side-lobes oblong-quadrate, midlobe ovate obtuse, a minute 
callus at base; spur short conic incurved. Column arms oval. 
Capsule elliptic, -5 in. long. Hab. Bindings, Gunong Tungul. 
Penang Hill (Curtis). Kedah, Baling (Williams). Lankawi (Curtis). 
Pulau Adang, Pulau Rawei. 
(25) S. cornigerum Ridl. Journ. Linn. Soc. xxxii. 361; Mat. i. 
162. 
Stem long, flexuous. Leaves lanceolate acute, 3*5 in. long, 
•5 in. wide; sheaths *36 in. long. Racemes 2- or 3-flowered. Ovary 
and pedicels *5 in. long. Sepals oblong-spathulate, *36 in. long. 
Petals broader brownish yellow. Lip yellowish white, side-lobes 
erect horn-like, midlobe oblong-spathulate; spur straight conic. 
Hab. Rare. Penang, West Hill (Curtis). 
(26) S. perpusillum Hook. fil. F.B.I. vi. 56; Ic. PI. 21QQA; 
Ridl. Mat. i. 164 
A small tufted plant, 2 to 4 in. tall. Leaves nearly terete acute 
recurved, 1 to 1*25 in. long. Racemes 1 in. long, covered with 
minute white pubescent flowers, withering yellow. Bracts minute 
lanceolate as long as pedicels. Sepals and petals ovate oblong. Lip 
side-lobes round, midlobe ovate fleshy; spur curved clubbed. 
Capsule -12 in. long, elliptic. Hab. On mangroves and other 
trees by rivers. Singapore, Sungei Buluh. Johor, Tempayang 
River. Malacca, Sungei Kesang and Sungei Rambei (Derry). 
Perak, Thaiping (Curtis). 
(27) S. minutiflorum Ridl. Journ. F.M.S. Mus. iv. 71. 
Stem 3 to 4 in. tall, rather stout. Leaves linear fleshy curved, 
