6 4 
CXXXVI. ORCHIDEjE. 
[Bulbophyllunt. 
(27) B. longistelidium Ridl. 
Rhizome woody, 0-25 in. thick, covered with roots; pseudo¬ 
bulbs -25 in. apart, conic curved, -25 in. long. Leaf linear-oblong 
blunt narrowed to base, 1-25 in. long, -25 in. wide. Scapes slender 
1 to i-1 in. long. Flower solitary. Sepals linear acuminate elon¬ 
gate, tips setaceous, 1*3 in. long, -i in. wide at base, base gibbous 
equal orange. Petals small rounded truncate orange with claret 
spots at tips. Lip claw long curved, limb -i in. long, fleshy ovate 
tongue-shaped dark claret pink. Columns short, arms long filiform, 
from a broad base. Anther broad. Pollinia large flat sub-oblong 
orbicular. Hah. Pahang, Fraser Hill at 4000 to 4370 ft. altitude 
(Burkill and Holttum). 
(28) B. vitellinum Ridl. Jonrn. Linn. Soc. xxxii. 271. B. 
truncicola Schlechter in Fcdde, Repert. Bot. Beih. i. 745. 
Rhizome slender; pseudobulbs 1 in. long, conic 4-angled, -75 in. 
apart. Leaf 1-5 in. long, *5 in. wide, lanceolate blunt. Peduncle 
filiform, *5 in. long. Flower hardly *25 in. wide. Upper sepals 
oblong-ovate rounded yellow with 3 crimson lines with or without 
black dots on the upper edge, laterals lanceolate-ovate, yellow, 
outer half with red lines or not. Petals half as long as sepals, 
obovate-oblong blunt, orange with 4 glandular black spots on 
edge, minutely ciliate. Lip as long as sepal oblong blunt, base 
excavate, channelled. Column arms linear blunt erect. Capsule 
fusiform, *5 in. long. Hah. Penang on tree trunks, West Hill. 
Distrih. Borneo. 
Originally found by me on a tree in Dr. Rauch's garden, Singapore, with 
B. epicrianthes and Dendrocolla fulgens, but probably planted there. 
(29) B. membranaceum T. and B. Nat. Tidsch. Ned. Ind. iii. 
397 > /■ /■ Smith Orch. v. Java 465, pi. cclvi. B. avicella Ridl. Journ. 
Linn. Soc. xxxii. 270; Mat. i. 67. 
Rhizome long slender; pseudobulbs 1 in. apart, obpyriform, 
*5 in. long. Leaf *75 in. long, *4 in. wide, ovate sub-acute, coria¬ 
ceous. Peduncle -25 in. long, Flower reversed. Bract very small, 
cup-shaped. Upper sepal lanceolate acute, -25 in. long, green, 
laterals much longer connivent into a boat-shape deep crimson. 
Petals minute cuneate, mucronate pale. Lip stipitate, claw erect, 
blade lanceolate blunt, flat narrow orange with crimson groove, 
purple beneath, papillose. Column pink, arms long linear, trun¬ 
cate bilobed, upper lobe short, lower long, curved. Capsule ovoid, 
*5 in. long. Hah . On mangrove and other trees, Singapore, Kranji; 
Bajau (Ridley). Negri Sembilan, Port Dickson (Williams). 
Penang Hill at 2000 ft. altitude. Distrih. Java. 
(30) B. epicrianthes Hook. fH. F.B.I. v. 753; Ridl. Mat. 
i. 68. 
Rhizome moderately thick; pseudobulbs 1 in. apart, -5 in. long, 
fusiform. Leaf elliptic-oblong blunt or acute, 1 in. long, -5 in. 
