114 CXXXIII. ORCHIDEX (ROLFE). [Polystachya. 
middle to the base. Column oblong, 1 lin. long. Chin broadly 
saccate, obtuse, 1? lin. long. Capsule elliptic-oblong, 6—8 lin. long.— 
Kriinzl. in Reichb. f. Xen. Orch. iii. 90, t. 248, figs. 14-16, t. 249, 
fig. 4; Krinzl. in. Mitth. Deutsch, Schutzgeb. ii. (1889) 156. 
Upper Guinea. Lower Niger: Onitsa, Barter, 1483! Cameroons, Braun ! 
Fernando Po, Mann, 436! 
20. P. puberula, Lindl. in Bot. Reg. t. 851. Pseudobulbs ovate. 
Stems short. Leaves lanceolate or oblanceolate, subacute, 6-8 in. long, 
10-12 lin. broad. Panicles branched, 3-7 in. long, many-flowered ; 
branches puberulous. Bracts triangular-ovate, acuminate, 1-1} lin. 
long. Pedicels 14-24 lin. long. Flowers greenish-yellow. Dorsal 
sepal ovate-oblong, apiculate, 14 iin. long; lateral ovate, apiculate, 
2 lin. long. Petals linear-oblong, apiculate, 14 lin. long. Lip trilobed, 
2 lin. long; side lobes roundish-oblong ; front lobe oblong, obtuse, 
equalling or scarcely larger than the side lobes; dise covered with a 
mealy pubescence and usually bearing a short, oblong, central callus. 
Column oblong, 1 lin. long, slightly pubescent on the face. Chin broadly 
saccate, obtuse, 1} lin. long.—Lindl. Gen. & Sp. Orch. 73 ; Benth. in 
Hook. Niger Fl. 530; Krinzl. in Mitth. Deutsch. Schutzgeb. ii. (1889) 
156. 
Upper Guinea. Sierra Leone; cultivated specimens, Don! Loddiges! 
Cameroons, Braun. 
Flowered in the collection of the Horticultural Society in 1824. 
Only known to me from garden specimens. The flowers are a little smaller than 
those of P. odorata, Lindl., and the front lobe of the lip is a little smaller, and has a 
much shorter keel. 
21. P. tessellata, Lindl. in Journ. Linn. Soc. vi. 130. Stems 
leafy, 3-6 in. long, slightly swollen at the base. Leaves oblong, or 
elliptic-oblong, obtuse or subobtuse, 4-8 in. long, 3-1} in. broad. 
Scapes 1-14 ft. high, with numerous lateral branches, the lowermost 
almost at the base, many-flowered. Bracts subulate-lanceolate from a 
broader base, acuminate, recurved, 3—14 lin. long. Pedicels 2-24 lin. 
long. Dorsal sepal ovate-oblong, subobtuse, 1—14 lin. long; lateral 
triangular-ovate, apiculate. Petals subspathulate-linear, apiculate, 
somewhat incurved, 1 lin. long. Lip trilobed, 14 lin. long; side lobes 
broadly oblong, obtuse, somewhat incurved ; front lobe suborbicular or 
obcordate-orbicular, crenulate; disc mealy-pubescent, with a linear keel 
from base to apex. Column oblong, 2 lin. long. Chin oblong, obtuse, 
1} lin. long. Capsule oblong, 6 lin. long.—Ridl. in Bolet. Soc. Brot. 
v. 198. P. Hypocrita, Reichb. f. in Gard. Chron. 1881, xvi. 685. 
Upper Guinea. Niger Delta: mouth of the Nun River, Mann! D 
Lower Guinea. St. Thomas: Angolares; at Lagoa and Angra de S. João, 
Quintas, 8! 84! Angola: Golungo Alto; at Cungulongo, on old tree trunks, 
Welwitsch, 655! Pungo Andongo; at Mata de Mutollo, Welwitsch, 704! 
I am unable to find any character to separate P. Hypocrita, Reichb. f. The 
absence of tessellation in the flowers is of no importance, as this character only appears 
in the dried specimens, 
