148 XXVIII. GRAMINES, [Andropogon 
sheaths and leaves glabrous, blades short, linear, plicate, subacute ; 
racemes 2 to 3, 12 to 12 in. long, densely hairy, hairs pale-fulvous 
twice as long as the rhachis-joints, sessile spikelets exceeding the 
rhachis-joints, nearly three lines long, callus of gl. I. with a 
tuft of very short hairs; gl. II. rather narrowly navicular, 
acuminate with a short awn scarcely } line long; fertile glume 
hyaline, base stipitiform, bifid for more than 3 of its length, 
awn 8 to 10 lines long; pedicel of aborted ¢ spikelet 2 lines 
long, spikelet consisting only of the outermost glume, lanceolate, 
acuminate, aristulate, scarcely 2} lines long including the awn 
which is almost equal to the rest of the glume. 
Huriia.—Rather dry wooded pastures near Humpata; April 1860. 
No. 2643. 
12. A. gayanus Kunth Rev. Gram. p. 163 (1829) (nomen), 
Enum. Pl. i. p. 491 (1833); Benth. in Hook. Niger Fl. p. 572 
(1849) ; Hack., lc. p. 447; Durand & Schinz, lec. p. 713. 
Loanpa.—An elegant grass, annual, 3 to 6 ft., erect. In grassy 
places at Waianga d’ El Rei; May 1858. No 7285. No. 7368¢ (+) 
material inadequate for certain determination. 
Gotunco ALTo.—A tall grass, 5 to 9 ft., and even in damp places, 
higher. In uncultivated places by roads and the edges of fields ; 
beginning of July 1855. No. 7249. 
Pungo ANDONGO.—In low-lying meadows in the presidium along 
with species of Gladiolus, but not common; end of April 1857. 
No. 7402. 
Cazenco.—A grass 5 to 8 ft. high with somewhat nodding panicles. 
Among herbage on edges of thickets near Dalatanda ; June 1855. 
No. 2951. 
13, A. schirensis Hochst. ex A. Rich. Tent. Fl. Abyss. ii. p. 456 
(1851); Hack., ic, p. 452; Durand & Schinz, lc., p. 722. 
Punco ANDONGO,—Czspitose in rather damp meadows between 
N-billa and Bumba on the right of the river Cuanza; March 
1857. No. 7439. 
14. A. diversifolius Rendle sp. nov. 
Apparently perennial by means of a hard slender rhizome ; 
culms slender, innovation shoots extravaginal; culms erect, 
terete, laxly branching, nodes glabrous; sheaths rounded, 
glabrous, shorter than internodes; ligule very short; lower 
leaves flat, linear from a tapering base, apex tapering, acute, 
upper ones, especially on the flowering shoot, sometimes narrowly 
lanceolate, generally tapering gradually from a broadly cordate 
amplexicaul base to an acute apex, rigidulous, glabrous or with a 
few hairs on the upper surface at the base, margin scabridulous ; 
racemes in pairs, terminating the main axis and the few long 
slender branches, far exceeding the non-spathiform uppermost 
sheath ; one raceme shortly pedicelled, with spikelets all hetero- 
gamous (5 § pairs), the other sessile with a homogamous basal 
pair and 2 heterogamous; rhachis-joints and pedicels flattened 
with shortly villous margin (hairs white below becoming fulvous 
above), passire sbove into an oblique scarious cup; sessile 
