Bulbophyllum. | CXXXIII. ORCHIDEE (ROLFE). 27 
obtuse, calyptrate, nearly cartilaginous ; lateral ones broadly ovate, 
falcate, deflexed, acuminate. Petals minute, triangular. Lip much 
curved, triangular ; disc sulcate ; apex bilobed. Column short, toothed 
on each side behind the androclinium, but not winged. 
Upper Guinea. Cameroons: Victoria, Preuss, 1215. 
Only known to me from the original description, but remarkable for its long 
inflorescence. 
10. B. filiforme, Kränzl. in Engl. Jahrb. xxii. 25. Pseudobulbs 
ovate, 2-leaved. Leaves lanceolate, obtuse. Rhachis of raceme very 
slender, about 2 ft. long, pendulous, lax, many-flowered; base with 
some ovate, acute sheaths. Bracts minute, ovate, reflexed, and as well 
as the rhachis and outside of the flowers sparsely covered with black 
hairs. Flowers minute, about 1} lin. in diameter. Dorsal sepal 
narrowly ovate, triangular, acuminate; lateral ones much broader, 
ovate, obtuse. Petals linear, acute, equalling the sepals. Lip curved, 
triangular, sulcate from the middle to the apex. Column winged from 
the base to near the apex. 
Upper Guinea. Cameroons: between Victoria and Bimbia, Preuss, 1242. 
Only known to me from the original description, but very remarkable in the 
inflorescence. 
11. B. tenuicaule, Lindl. in Journ. Linn. Soc. vi. 126. Pseudo- 
bulbs 1-14 in. apart on a stoutish creeping rhizome, elongate-linear, 
attenuate above, 14-14 in. long, 2-leaved. -Leaves oblong-linear, 
obtuse, attenuate at the base, 17 in. long, 24-3 lin. broad. Scapes 
slender, suberect, 4 in. long; racemes 1} in. long, many-flowered. 
Bracts distichous, spreading, ovate, subacute, 14 lin. long. Dorsal 
sepal triangular-ovate, subacuminate, base concave, 2 lin. long ; lateral 
ones triangular-lanceolate, acuminate. Petals linear, acute, ł lin. long. 
Lip recurved, oblong, obtuse, not fleshy, ciliate, } lin. long. Column 
stout, 4 lin. long ; teeth subulate, acute, + lin. long. 
Upper Guinea. Fernando Po, on trees, 5000 ft., Mann, 648 ! 
12. B. bifarium, Lindl. in Journ. Linn. Soc. vii. 219. Pseudobulbs 
1-1} in. apart on a creeping rhizome, ovoid-oblong, 4-winged, #-1} in. 
long, 2-leaved. Leaves narrowly oblong, obtuse, 2-24 in. long, 4-5 
lin. broad. Scapes suberect, 5-6 in. high; spikes 3-3} in. long. Bracts 
distichous, ovate-lanceolate, acuminate, concave, 4-5 lin. long. Dorsal 
sepal elliptical-oblong, acute, concave, membranous, 2} lin. long; 
lateral ones oblong-lanceolate, nearly flat, otherwise similar. Petals 
quadrate-orbicular, truncate, 2 lin. long. Lip oblong, obtuse, fleshy, 
recurved, glabrous, 1 lin. long; side lobes erect, rounded, and nearly 
auriculate. Column stout, 1 lin. long; teeth stout, acute, } lin. long. — 
Durand & Schinz, Conspect. Fl. Afr. v. 10. 
Upper Guinea. Cameroon Mountains, 5000 ft., Mann, 2121! 
Lower Guinea. Angola (ex Durand A Schinz). 
13. B. gravidum, Lindl. in Journ. Linn. Soc. vi, 126. Pseudo- 
