Polystachya. | CXXXIII. ORCHIDEH (ROLFE). 131 
2 lin. long; lateral triangular-ovate, acuminate. Petals linear-lanceo- 
late, acute, 24 lin. long. Lip 44 lin. long, unguiculate; limb trilobed ; 
side lobes broadly semiovate, obtuse, with a plication at the base ; front 
lobe ovate, acute ; disce smooth, with a transverse, crenulate, membranous 
callus between the side lobes. Column stout, 14 lin. long. Chin 
oblong, obtuse, 24 lin. long. Capsule oblong, triquetrous, 4 lin. long. 
Nile Land. British East Africa: Ruwenzori, Butagu, 9000 ft., among heather, 
Seott-Elliot, 8617 ! 
73. P. bulbophylloides, folfe in Kew Bulletin, 1891, 199; 1892, 
App.41. Rhizome creeping. Pseudobulbs 4-7 lin. apart, ovoid-globose, 
24-3 lin. long, 2-leaved. Leaves elliptic-oblong, minutely bidenticu- 
late, somewhat fleshy, 4-7 lin. long, 2-2} lin. broad. Scapes lateral, 
slender, 1-1? in. long; racemes simple, usually few-flowered. Bracts 
ovate, acute or apiculate, 3—11 lin. long. Flowers subsessile. Dorsal 
sepal ovate-oblong, acute, concave, 1} lin. long; lateral triangular- 
ovate, acute. Petals reduced to a very minute tubercle. Lip 14 lin. 
long, oblong, somewhat trilobed at the apex; side lobes minute; front 
lobe larger, ovate, with a recurved, subobtuse apex; disc smooth. 
Column stout, } lin. long. Chin saccate-oblong, obtuse, 1 lin. long.— 
Dendrobium pumilum, Sw. in Schrad. Neues Journ. i. 97; Pers. Syn. 
Pl. ii. 523. = Bulbophyllum? pumilum, Lindl. Gen. & Sp. Orch. 54. 
Bulbophyllum apetalum, Lindl. in Journ. Linn. Soc. vi. 127. 
Upper Guinea. Sierra Leone: Bagru River, Mann! and without precise 
locality, Afzelius ! Niger Delta: Brass River, on oil palms, Barter, 72! 
The habit of this species is precisely that of a small creeping Bulbophyllum, to 
which genus Lindley referred it, remarking: “This singular little species has flowers 
like miniatures of Aconitum Lycoctonum. ` For petals there‘are ohly two minute rudi- 
ments; the lip resembles that of some Polystachyas, and the column has two deep, 
fleshy, purplish cheeks,” 
74. P. micropetala, Rolfe. Pseudobulbs }-1 in. apart, on a 
Slender, creeping rhizome, oblong or ovoid-oblong, 3-5 lin. long, 2- 
leaved. Leaves oblong or linear-oblong, obtuse, 5-8 lin. long, 14 lin. 
broad. Scapes slender, suberect, 14-14 in. long; racemes 4 in. long, 
few-flowered; rhachis flexuous. Bracts distichous, ovate, subacute, 
lin. long. Dorsal sepal ovate, subacute, concave, } lin. long; laterals 
very broadly triangular-ovate, subacute, 2 lin. broad. Petals repre- 
sented by two minute bristles. Lip ł lin. long, cuneate-oblong at the 
base, trilobed ; side lobes extending into a pair of triangular, acute 
arms ; front lobe nearly obsolete ; dise smooth. Column stout, $ lin. 
long, with a pair of short, truncate arms. Chin } lin. long, saccate, 
eas micropetalum, Lindl. in Journ. Linn. Soc. vi. 
Upper Guinea. Fernando Po, 4000 ft., Mann, 644! 
A peculiar little plant allied to the preceding. The petals are much reduced, and 
are easily overlooked. 
