168 cxxxvi. orchide^e. [Saccolabium. 
ridge on each side of mouth, a thin crescent-shaped callus at back. 
Anther hemispheric, beak upcurved. Hab. Perak, Lenggong and 
Slim (Ridley, Hobson). 
(11) S. uteriferum Ridl. Mat. i. 167. Cleisostoma uteriferum 
Hook. fit. F.B.I. vi. 74; Ann. Bot. Gard. Calc. v. 56, pi. 84. 
Stemless. Leaves lorate round or retuse, edges undulate, 7 in. 
long, 1 in. wide. Scape shorter, 3 in. long, unbranched spicate. 
Sepals obovate-oblong dull yellow, base red. Petals smaller. Lip 
side-lobes truncate, midlobe very small ovate; spur a large sub- 
globose sac contracted above, callus semicircular convex. Hob. 
Pahang, Kota Tongkat (Evans). Negri Sembilan, Seremban reser¬ 
voir (Williams). Perak (Kunstler), a drawing. 
(12) S. sylvestre Ridl. Journ. Roy. As. Soc, S. Br. 57, p. 98. 
Stem weak, 3 to 8 in. long. Leaves linear-oblong acute, base 
slightly narrowed flaccid, 3 or 4 in. long, *5 in. wide; sheath ribbed 
keeled, -25 to -5 in. long. Racemes 4 to 6 in. long, slender angled. 
Flowers nearly *25 in. long, numerous distant. Upper sepal ovate 
cymbiform, laterals ovate-orbicular slightly falcate. Petals nar¬ 
rower oblong blunt. All yellow with red streaks. Lip side-lobes 
oblong truncate, midlobe linear acuminate; spur longer than 
pedicel cylindric dilate in middle, tip broad saccate, calli none. 
Hob. Perak, Temengoh, on tree-trunks (Ridley). 
(13) S.rugosulum Ridl. Journ. Roy. As. Soc. S. Br. 39, p. 82; 
Mat. i. 165. 
Stem stout tall. Leaves linear narrowed at base, bilobed at tip. 
5 in. long, -5 in. wide; sheath *5 in. long, transversely wrinkled. 
Racemes short, -5 in. long, a few cup-shaped sheaths at base. 
Flowers -25 in. wide, yellow spotted red; pedicel -12 in. long. Sepals 
ovate coriaceous. Petals thinner. Lip boat-shaped, side-lobes 
very short oblong, midlobe large fleshy ovate grooved ending in a 
slender horn, bifid at tip; spur short conic blunt. Column large. 
Hab. Very rare. Kedah Peak (Ridley). 
(14) S. halophilum Ridl. Journ. Linn. Soc. xxxii. 367; Mat. i. 
162. 
Stems 3 to 12 in. long, curved. Leaves terete pungent recurved 
sheaths *24 in. long. Raceme slender. Sepals oblong blunt. 
Petals smaller olive tinted pink. Lip side-lobes ovate, blunt rosy 
violet, midlobe hastate blunt, spur horizontal not septate; callus 
obtriangular white. Anther ovate beaked. Pollinia globose, 
caudicle linear, disc broad hastate. Capsule *36 in. long. Hab. 
On trees by the sea, common. Singapore, Pulau Tekong; Sungei 
Morai. Johor, Tana Runto. Negri Sembilan, Port Dickson and 
Siliau (Williams). Distrib. Sumatra, Rhio, Borneo. 
(15) S. Machadonis Ridl. Journ. Roy. As, Soc. S. Br. 39, p. 82 ; 
Mat. i, 163. 
Stems 1 ft. long. Leaves terete recurved, 3 in. long, pungent. 
