148 XXVIII. GRAMiXE.K. [Andropogon 



sbeatlis :vnd leaves glabrous, blades short, linear, plicate, subacute ; 

 racemes 2 lo 3, II to 1^ 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 i 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 21 lines long including the awn 

 which is almost equal to the rest of the glume. 



HriLLA. — Rather dry wooded pastures near Humpata ; April 1860. 

 No. 2643. 



12. A. gayanus Kunth Rev. Gram. p. 163 (1829) (nomen), 

 Enum. PI. i. p. 491 (1833); Benth. in Hook. Niger Fl. p. 572 

 (1849) ; Hack., I.e., p. 447 ; Durand & Schinz, I.e., p. 713. 



LoANDA. — An elegant grass, annual, 3 to G ft., erect. In grassv 

 places at Waianga d' El Rei ; May 1858. Xo 7285. Xo. 7368c (V) 

 material inadequate for certain determination. 



GoLiNGd Alto. — A tall grass, 5 to 9 ft., and even iu damp places, 

 higher. In uncultivated places by roads and the edges of fields ; 

 beginning of July 1855. No. 7249. 



PuN(a) AiNDONtio. — In low-lying meadows in the proesidium along 

 with species of Gladiolus, but not common ; end of April 1857. 

 No. 7402. 



CAZKMio. — 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. 45G 

 (1851); Hack., I.e., p. 452 ; Durand & Schinz, I.e., p. 722. 



PuN(i(t An'don(;(). — Cffispitose 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 lfi*om 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 pau's, terminating the main axis and the few long 

 slender branches, far exceeding the non-spathiforni uppermost 

 sheath ; one I'aceme 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 \allous margin (hairs white below becoming fulvous 

 above), passir,i> above into an oblique scarious cup; sessile 



