Polystachya. | CXXXIII. ORCHIDEA (ROLFE). 109 
14 lin. long. Capsule oblong, ł in. long.—Reichb. f. in Flora, 
1867, 114. 
Lower Guinea. Princes Island, Barter, 1986! Angola: Golungo Alto; 
Mt. Cungolungulo, 2300 ft., on decaying tree trunks, Welwitsch, 670! 
The Angolan specimen cited by Reichenbach is in fruit only, but looks a little 
different in the leaves and inflorescence, and turns black in drying. 
5. P. pyramidalis, Lindl. in Journ. Linn. Soc. vi. 130. Plant 
14-2 ft. high. Stem tall, subcylindric, with about ten or eleven 
distichous leaves from the base to the apex. Leaves lanceolate or 
oblong-lanceolate, acute or acuminate, 3-8 in. long, 4—1 in. broad. 
Panicle shortly peduncled, a little branched, pyramidal, dense, 3-4 in. 
long. Bracts very broadly ovate or obscurely trilobed, slightly undulate, 
2-21 lin. long; rounded at the sides, triangular in front, acute or 
acuminate. Pedicels 2) 3 lin. long. Flowers yellow. Dorsal sepal 
ovate-oblong, acute, concave, 24-3 lin. long; lateral broadly triangular- 
ovate, acute, strongly carinate. Petals oblong-lanceolate, acute, 2-21 
lin. long. Lip trilobed, 3 lin. long ; side lobes triangular, acute, incurved, 
situated close to the base ; front lobe obcordate, with a small triangular 
fleshy mucro in the sinus; disc pubescent. Column stout, 1 lin. long. 
Chin triangular-oblong, obtuse, 2 lin. long.—P. sulfurea, Brongn. in FI. 
des Serres, xv. 45. 
Upper Guinea. Niger Delta: Banks of Nun River, Mann, 522! 
P. sulfurea, Brongn., is probably identical, as he himself doubtfully suggested. 
6. P. rhodoptera, Reichb. f. in Hamb. Gartenz. xiv. 214 
(“rhodopterya”). Plant about 9 in. high. Stems 3-4-leaved. Leaves 
lanceolate, acuminate, 3—5 in. long, 2-7 lin. broad. Scape somewhat 
branched, dense-flowered. Bracts ovate-lanceolate, acute, reflexed, 
2-2} lin. long. Pedicels 3 lin. long. Flower light-pink, with a yellow 
lip. Dorsal sepal ovate-oblong, subobtuse, concave; lateral broadly 
triangular-ovate, apiculate, 24 lin. long. Petals spathulate, concave, 
apiculate, 2 lin. long. Lip subsessile, trilobed, 3 lin. long; side lobes 
small, basal, ovate-oblong, subobtuse, incurved at the apex; front lobe 
obcordate-oblong, emarginate or shortly bilobed, very much larger. 
Column stout, 14 lin. long. Chin saccate, obtuse, about 2 lin. long.— 
Gier Bot. Hamb. ii. 113. P. carnea, Brongn. in Fl. des Serres, xv. 45, 
. 1521. 
Upper Guinea. Sierra Leone, cultivated in the garden of the School of 
Medicine, Paris (ex Reichenbach). 
Lower Guinea. Gaboon, Le Comte. 
Flowered regularly since 1857 in the Jardin des Plantes, Paris (ex Brongniart). 
I have only seen the published figure of this species. 
7. P. cultrata, Lindl. Bot. Reg. sub t. 851. Pseudobulbs linear- 
oblong, or ovate, 1—4 in. long, 1-leaved. Leaves oblong, obtuse, or sub- 
acute, 24 6 in. long, 3-11 in. broad. Scapes equalling or exceeding the 
leaves, glabrous; panicle 3-3 in. long, more or less branched. Bracts 
triangular-ovate, acute or acuminate, 1-14 lin. long. Pedicels 1-2 lin, 
