142 XXVIII. GRAMINEAE, [Andropogon 
10. ANDROPOGON L.; Benth. & Hook. f. Gen. PI. iii. p. 1133. 
Suseenus I. Schizachyriwm. 
1. A. brevifolius Sw. Prodr. p 26 (1788) ; Hack. Mon. Androp. 
p. 363; Durand & Schinz, Consp. Fl. Afr. v. p. 707. 
GoLtunco ALro.—A very slender decumbent grass, rendering ex- 
tremely difficult the ascent of the slopes, on account of its slippery 
culms. On the sunny slopes of the mountains of Alta Queta, but in 
few places; May 1855. No. 7250. On rather high and dry slopes on 
the eastern side of Monte Queta ; end of April 1856. No. 7205. 
Punco ANDoNGO.—On rocky short-grassed slopes of Pedras de 
Guinga, but growing sparsely, and intermixed with other grasses ; 
Jan. 1857. No. 7403. 
2. A. exilis Hochst. in Flora xxvii. p, 241 (1844); Hack., ic., 
p. 365; Durand & Schinz, J.c., p. 711. 
Var. glabrescens Rendle var. nov. 
Pubescent ; culms erect 36 to 40 in. long; leaf-blades linear 
acute 5 to 6 in. long by 1} lines wide; racemes 11 to 2 in. long, 
exserted from the lanceolate acute spathe ; rhachis-joints glabres- 
cent, the edges bearing a short white pubescence at the base, 
2 to 3 lines long, sessile spikelet and pedicel with aborted spikelet 
subequal, 1 in, long, pedicel glabrous on back with a line of white 
hairs on one or both edges; outer glume of sessile spikelet densely 
pilose on the back; awn of sessile spikelet 3 in., dark brown 
column and pale yellowish subula equal, awn of stalked spikelet 
pale, weak, 1} in. long or less, 
Distinguished from var. Petitianus Hack. by its less hairy spike- 
lets and somewhat larger coarser racemes, 
Punco Anponco.—In rather damp woods at Mopopo, on the right 
bank of the river Cuanza; April 1857. No. 7423. 
3, A. hirtiflorus Kunth Rev. Gram. p. 569, t. 198 (1829); Hook. 
f. Fl. Brit. Ind. vii. p. 167 (1896) ; Hack., dc., p. 371. 
A, Pseudograya Steud. Syn. Pl. Gram. p. 365 (1854); Hack., 
Jc. p. 370; Durand & Schinz, lc., p. 720. A. semiberbis Kunth 
Enum, i. p. 489 (1833); Hack., Zc, p. 369; Durand & Schinz, 
Lc. p. 123. 
Loanpa.—Common in Capimeta near Quicuxe; May 1854. No. 7326. 
Huitta.—In marshy woody places near Catumba, but not yet in 
flower. The locality was subsequently destroyed by the fires of the 
Monanensian war. A single specimen in flower Feb. 1860. No. 2650. 
After careful comparison of the American 4. hirtiflorus and 
the Asiatic A. Pseudograya, I am forced to the same conclusion 
as that arrived at by Sir Joseph Hooker (J.c.), namely, that the 
two are not specifically distinct. There is, however, considerable 
variation in the size of the spikelets, especially of the pedicelled, 
in the thickness of the rhachis-joint, and in the indumentum and 
colour. The American species can generally be distinguished 
by the slate-coloured and densely hairy spikes; in Asiatic and 
African species they are less hairy and generally rufous. 
