554 GRAMINEX (Stapf). [ Aristida. 
3-8 in. long ; awn plumose from 
below the Germaine point . (22) uniplumis. 
Culms 3 ft. longs sine blades 
icle 
sie idl awn plamose in the 
as . (23) dregeana. 
Tisicts spike like 
Culms up to $ 5 | ft. long internodes 
ver. unequa pair of sub- 
opposite leaves aioe the middle ; 
panicle hair (24) geminifolia. 
ees : internodes rey 
any, subequal upper 
gradtally Tonger pail pea 
. (25) brevifolia. 
1. A. Adscensionis (Linn. Sp. Pl. 82); annual or occasionally 
perennial with an oblique msi glabrous ; culms tufted, geniculately 
ascending, slender, from a few inches to 2 ft. long, usually branched 
o 
) 
long exserted; sheaths tight, rather ~ smooth ; ligule a line o 
short hairs ; blades very narrow, linear, tapering to a very fine point, 
1-9 in. long, up to 1 lin. broad, convolute, rarely flat, smooth below, 
scabrid above and on the m argins ; panicle linear, spike-like, usually 
interrupted or oblong and more or less lax, rigid or flaceid ; branches 
single or 2-nate, unequal, branched from the base or simple to the 
middle, erect or nodding or flexuous, filiform, scabrid, lateral 
pedicels short ; spikelets 3-5 lin. long, often purplish ; glumes linear 
to linear-lanceolate, acute or subobtuse, 1-nerved, the lower 2-3} lin., 
the upper 3-42 lin. "long, sometimes mucronate ; ‘valve linear, laterally 
compressed, as long as the upper glume or ‘slightly pa a rarely 
shorter, scabrid along the keel and the outer nerve, otherwi mooth 
or seabrid, particularly below the straight tip ; callus 4 lin. inet awn 
6-9 lin. long, rarely shorter (down to 4 lin.) or longer (up to 1 in.), 
diverging, continuous with the valve, the lateral sorsowhat shorter ; 
pale obtuse, less than 3 lin. long; lodicules similar to the pale, 
3-5-nerved, 2 11 Jin. long; anthers a tin: long ; grain almost as long aS 
the valve. Brongn. in Duperr. oy. Cog. 3; Kunth, Enum. 
i. 190; Trin. § Rupr. Stip. 138; Steud. Syn. Pl. Glum. i. 139; 
Baker, Fl. Maurit. 450; Durand & Schinz, Consp. Fl. Afr. 7995 
k. f. Flor. Brit: Ind. vii. 224. . paniculata, Forsk. Fi. 
Aegypt.-Arab. 25 (4). A.americana, Linn. in. Amoen. Acad. V- 393, 
not Swartz. A. gigantea, Linn. f. Suppl. Lis 2. depresea, Retz. Obs. 
iv. 22. A. corulescens, Desf. Fl. Atlant. i. 109, t. 21, fig. 2; Schum- 
§ Thonn. Beskr. Guin. Pl. 47 ; Trin. Spec. Gram. Ie. t. 313. A. 
interrupta, Cav. Ic. v. 45, t. 471, fig. 2. A. dase Cav. Ie. vi. 69, 
t. 589, fig. 1. A. canariensis, Willd. Enum. 99, A. humilis, A. 
ecgaarey and A, coarctata, H. B.K. Nov. in. et. Spec. i. 14 21, 
12 . divaricata, Jacq. Ecl. Gram. 7, t. 6, not Willd. A 
pian. Kunth, Rév. Gram. i. 61; 265, t. 44 ; Trin. §° Rupr 
Stip. 189, A. setacea, Trin. Gram. Gen. 84, not Retz. A. nigrescens, 
Presl, Relig. Haenk, i, 223. A. cognata and A, dispersa, Trin. 5 
