40 cxxxvi. orchide^s. [Dendrobium. 
i in. long, elliptic; pedicel *25 in. long. Hab. In shallow water, 
ditches and swamps, Singapore, Changi. Malacca, Bukit Bru- 
ang (Curtis). Distrib. Labuan. Native names: Rumput| Rajah 
Sari. 
(20) D. villosulum Wall. Cat. 2006; Hook. fit. F.B.I. v. 728; 
Ridl. Mat. i. 44. 
Terrestrial stems, graceful terete, sometimes branched, 2 to 
3 ft. tall. Leaves linear-lanceolate unequally bilobed, 2 in. long, 
nearly -25 in. wide, sheaths 1 in. long, black pubescent. Flowers 
solitary pendulous from sheaths *5 in. long. Sepals lanceolate 
acute, yellowish with pale red network, mentum '5 in. long, narrow 
blunt straight. Petals narrow linear recurved. Lip shorter, 3-lobed, 
side-lobes narrow erect, blunt, midlobe orbicular, primrose yellow. 
Column short, base thicker. Hab. Terrestrial on dead leaves, 
up to 4000 ft. altitude. Singapore, Bajau; SungeiBuluh. Malacca, 
Mt. Ophir. Negri Sembilan, in old rubber ground Siliau (Williams). 
Penang Hill at 3000 ft. altitude (Porter, etc.), Kedah Peak. 
(21) D. pachyglossum Par. and Rchb. fil. Trans. Linn. Soc. 
xxx. 149; Hook. fil. Ann. Bot. Gard. Calc. v. 8, pi. 12; Ridl. Mat. 
i. 44. D. abietinum Ridl. Journ. Linn. Soc. xxxii. 252. 
Epiphytic stems slender, 1 ft. long. Leaves linear acute, 4 in. 
long, *12 in. wide, sheaths -25 in. long. Flowers *5 in. wide in pairs 
on short lateral racemes. Sepals oblong blunt, laterals wider 
greenish with red streaks, mentum -25 in. long, white. Petals 
narrow linear acute. Lip fleshy spathulate, side lobes hardly 
distinct, midlobe emarginate pale green, keels 2. Column narrow. 
Hab. Mountain forests on trees, at 2000 to 4000 ft. altitude, Pahang, 
Gunong Tahan. Perak, Thaiping Hills at 2000 ft. altitude. Kedah 
Peak. Lankawi, Gunong Raya. Distrib. Tenasserim. 
§ 5. Bambnscefolice. 
(22) D. gemellum Lindt. Gen. and Sfi. Orch. PI. 81; Ridl. Mat. 
i. 44. 
Epiphyte 2 to 3 ft. tall, flattened above. Leaves lanceolate 
lorate unequally bilobed thin light green, 4 in. long, *3 to -5 in. wide, 
sheaths -75 in. long, wrinkled. Raceme from centre of an internode 
very short enclosed in oblong blunt bracts. Flowers 2, yellowish 
unexpanded, -5 in. long; pedicel *5 in. long; ovary -12 in. long. 
Upper sepal lanceolate blunt, laterals larger triangular-lanceolate; 
mentum as long, thick curved. Petals linear-lanceolate acute. 
Lip shorter narrow spathulate entire thin. Capsule ovoid, -5 in. 
long. Hab. On trees. Singapore, Serangoon. Malacca, Bukit 
Bruang (Griffith), Perak, Thaiping. Jalor, Biserat (Gwynne 
Vaughan). Lankawi (Curtis). Distrib. Siam, Java, Sumatra, 
Borneo. 
(23) D. pensile Ridl. Journ. Linn. Soc. xxiii. 253; Mat. i. 5. 
Stems numerous pendulous, 2 to 3 ft. long, terete. Leaves 
numerous ovate-lanceolate fleshy distichous, 3 in. long, *75 in. vide. 
