Polystachya.'] cxxxiii. orchide^ (rolfe). 109 



1|- lin. long. Capsule oblong, | 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. pyramidalisy Lindl. in Journ. Linn. Soc. vi. 130. Plant 

 lJ-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, J-1 in. broad. 

 Panicle shortly peduncled, a little branched, pyramidal, dense, 3-4 in. 

 long. Bracts very broadly ovate or obscurely trilobed, slightly undulate, 

 2-2|^ lin. long; rounded at the sides, triangular in front, acute or 

 acuminate. Pedicels 2J-3 lin. long. Flowers yellow. Dorsal sepal 

 ovate-oblong, acute, concave, 2 J-3 lin, long ; lateral broadly triangular- 

 ovate, acute, strongly carinate. Petals oblong-lanceolate, acute, 2-2J 

 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 Hn. long. 

 Chin triangular-oblong, obtuse, 2 lin. long. — P. sulfurea, Brongn. in Fl. 

 des Serres, xv. 45. 



Upper Guinea. Niger Delta : Banks of Nun River, Mann, h22i ! 



P. sulfurea, Brongn., is probably identical, as he himself doubtfully suggested. 



6. P. rhodoptera, Reichh. f. in Hamh. 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, 

 2-2J lin. long. Pedicels 3 lin. long. Flower light-pink, with a yellow 

 lip. Dorsal sepal ovate-oblong, subobtuse, concave; lateral broadly 

 triangular-ovate, apiculate, 2J 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, 1 J lin. long. Chin saccate, obtuse, about 2 lin. long. — 

 Otia Bot. Hamh. ii. 113. P. carnea. Brongn. in Fl. des Serres, xv. 45, 

 t. 1521. 



Upper Guinea. Sierra Leone, cultivated in the garden of the School of 

 Medicine, Paris (ex Reichenhach). 



Ziower Guinea. Gaboon, Le Comte. 



Flowered regularly since 1857 in the Jardin des Plantes, Paris (ex Brongniart). 



1 have only seen the published figure of this species. 



7. P. cultrata, Lindl. Bot. Reg. sub t. 851. Pseudobulbs linear- 

 oblong, or ovate, J-4 in. long, 1 -leaved. Leaves oblong, obtuse, or sub- 

 acute, 2J-6 in. long, f-l| in. broad. Scapes equalling or exceeding the 

 leaves, glabrous; panicle |-3 in. long, more or less branched. Bracts 

 triangular-ovate, acute or acuminate, 1-1^ lin. long. Pedicels 1-2 lin. 



