44 cxxxvi. orchidEjE. [Dendrobium. 
(34) D. metachilinum Rchb. fil. Bonplandia iii. 1855, p. 222; 
Ridl. Mat. i. 46. 
Stems stout, over 1 ft. long, deeply grooved. Leaves broad 
lanceolate, tips very unequally bilobed, 3 in. long, *36 in. wide; 
sheaths 1 in. long. Racemes from upper axils very short, 3- to 
4-flowered. Bracts ovate acute, very small. Ovary and pedicel 
•5 in. long. Sepals oblong-lanceolate acute, -5 in. long; mentum 
•5 in. long, straight, slender acuminate. Petals linear-spathulate, 
burnt sienna colour with darker veining. Lip narrow with a long 
claw and small tooth-like side-lobes, midlobe small ovate fleshy 
caruncled, brown with 2 keels on disc. Hab. very rare, Malacca 
(Cuming); Bukit Jelutong (Derry). Negri Sembilan, Siliau 
(Williams). 
The long mentum and narrow, long-clawed lip cause the flower to resemble 
a Pedilonum. 
( 35 ) D. pandaneti Ridl. Journ. Linn. Soc. xxxii. 257; Mat. 
i. 47. 
Rhizome long creeping vertically on trunks of palms and pandans, 
branched. Stems 8 to 12 in. long, weak. Leaves thin lanceolate 
acuminate unequally bifid, 3 in. long, *75 in. wide, sheaths *5 in. 
long. Racemes in upper axils *25 in. long. Flowers few, 1 in. 
across. Pedicel and ovary 1 in. long. Sepals lanceolate acute; 
mentum slender blunt, shorter. Petals linear acute, all white. 
Lip base narrow linear, side-lobes short blunt incurved, midlobe 
fleshy, orange red with three orange keels on disc. Column straight, 
olive brown; arms large incurved and often bearing a half-anther 
on each. Capsule on pedicel -5 in. long, elliptic, pear-shaped fawn- 
colour. Hab. Climbing on trunks of palms and pandans. Singa¬ 
pore, Jurong; Bukit Mandai. Johor, Pulau Kukub; Batu Pahat. 
Dislrib. Sumatra. 
(36) D. euphlebium Lindl. Journ. Linn. Soc. iii. 7; Rcjib. fil. 
Xenia Orch. ii. 26 t. no; Ridl. Mat. i. 49. 
Stems 6 to 9 in. tall, thickened upwards from a slender base, 
waved. Leaves terminal 2 lanceolate acuminate, 3 in. long, -75 in. 
wide, shortly petioled. Flowers solitary pendulous below the leaves, 
with a small yellow ovate bract. Upper sepal ovate-oblong blunt, 
laterals broad triangular ovate; mentum short. Petals lanceolate- 
spathulate, all white. Lip base narrow, side-lobes erect short, 
midlobe broad orbicular, depressed, yellow with pink veins and 
streaks, a small callus on claw-base. Capsule obconic, 1 in. long. 
Hab. On mangrove trees and hill woods, Singapore, Kranji; Selitar. 
Johor, Gunong Pantai; Batu Pahat. Negri Sembilan, base of 
Gunong Angsi (Williams). Distrib. Borneo, Java. 
(37) D. callibotrys Ridl. Journ. Linn. Soc. xxxii. 258. 
Stems sub-terete, 6 in. long or more, *25 in. thick. Leaves few 
at top lanceolate, 4 in. long, 1 in. wide; nerves 6. Racemes 1 in. 
