284 
clvii. graminete (Stapf). [Cymbopogon. 
glabrous and smooth, prominently striate ; ligules membranous, 
truncate, glabrous, under J lin. long ; blades linear from a rounded 
or slightly attenuated base, tapering to an acute point, to over 1 ft. 
by 3-5 lin., glaucous-green, flaccid, thin, glabrous, smooth, ex- 
cept on the upwards scaberulous margins, midrib whitish, slender ; 
primary lateral nerves up to 6 on each side, very slender, somewhat 
raised. Spatheate panicle narrow, more or less dense, 4 to over 6 
in. long ; lower primary branches undivided at the base (or with 
an arrested ray), terminally exserted from the supporting sheath, 
forming a false spike about 2 in. long, 5-7-noded, the upper forming 
mixed or simple tiers ; ultimate tiers with 2 rays, 3-4 lin. long, 
filiform, glabrous ; subtending sheaths with normal but shortened 
blades ; spathes narrowly lanceolate, long and finely acuminate, 
subherbaceous, subglaucous, glabrous. Spatheoles very narrow, 
at length subulate-lanceolate, 6-8 lin. long ; peduncles very finely 
filiform, 2-4 lin. long. Racemes 2-nate, more or less spreading 
at length, somewhat dense, olive-green, 6-8 lin. long, one subsessile, 
the other with a bare base, not quite 1 lin. long, base of subsessile 
raceme and adjacent pedicel stout but not fused, § lin. long ; fertile 
joints filiform, slightly over 1 lin. long, very shortly ciliate below (a few 
cilia near the tips, |-| lin. long), tips broadly auriculate and cupular ; 
adjacent pedicels very similar. Homogamous pair of spikelets 1 at the 
base of the sessile raceme. Fertile spikelets lanceolate-oblong, sub- 
obtuse, 2J-2J lin. long, glabrous ; callus very small, obtuse, glabrous. 
Glumes equal, almost membranous, lower minutely truncate, flat on 
the back, with a fine median groove, bordered by a green intracarinal 
nerve and a broad brown oil-mark on each side ; keels winged 
upwards, wings whitish, transparent ; upper glume narrowly boat- 
shaped, narrowly winged on the keel, sub-3-nerved. Lower floret 
reduced to an oblong delicately hyaline nerveless sparingly ciliolate 
valve almost 2 lin. long. Upper floret ^ : valve linear, about 1 lin. 
long, subhyaline, 2-fid to almost the middle, segments very narrowly 
linear, subeciliate ; awn 4-8 lin. long, fine, bent at and twisted 
below the middle. Anthers over 1 lin. long. Pedicelled spikelets 
(J, oblong, subobtuse, as long as the sessile, and of the same colour 
if not darker ; lower glume about 7-nerved, keels obscurely winged; 
upper glume membranous, shorter, 3-nerved ; valve oblong, 1J lin. 
long, hyaline, 2-nerved, ciliolate ; anthers as in the fertile spikelet. — 
Andropogon nervatus , Hochst in Flora, 1844, 243 ; Steud. Syn. PI. 
Glum. i. 387. A. Schoenanthus, var. nervatus , Hack, in DC. Monogr. 
Phan. vi. 611 ; Durand & Schinz, Consp. FI. Afr. v. 722 ; and var. 
genuinus, Chiov. in Ann. Istit. Bot. Roma, viii. 286. Gymnanthelia 
nervata , Aschers. & Schweinf. in Schweinf. Beitr. FI. Aethiop. 306. 
Nile Land. Sudan : Cordofan ; in savannas on Mount Arash-Kul, Kotschy, 
374 ! near the sources of the “ River Bio ” and in the region of the White River 
(specimen cultivated in Cairo), Figari ! 
Chiovenda {Gram, da Essence, 11) describes a variety “ cerythrceum ” from 
