Hyparrhenia.] clvii. gramine^ (Stapf). 
309 
stout, white and broad on the upper side ; primary lateral nerves 
3-d on each side. Spatheate panicle narrow, about 1 ft. long, of 
about 5 frequently 5- or more-rayed distant tiers ; rays of lower 
tiers mostly compound 2-1-noded, erect or suberect, much over- 
topping the adjacent internode, filiform, shortly bearded at the 
nodes, upper simple rays very slender, about 1 in. long ; spathes 
with narrow more or less herbaceous upwards abbreviated blades. 
Spatheoles narrowly lanceolate, lj-lf in. long, acuminate, soon 
tightly inrolled, bearded at the nodes, otherwise glabrous, pale 
reddish. Peduncles finely filiform, erect, at length equalling or 
exceeding (by up to 1 in.) the spatheoles, minutely pubescent 
upwards with longer delicate hairs. Racemes suberect , rarely nod- 
ding, subcontiguous, up to 1 in. long, 12-19-awned per pair, olive- 
or reddish-green, sparingly hairy, the lower subsessile, the other 
with a filiform base, up to lb lin. long ; both bases pubescent in 
the fork ; joints filiform, subobliquely truncate, up to 1 lin. long, 
very shortly white-ciliate ; pedicels very similar. Homogamous 
pair of spikelets 1 at the base of the lower raceme only. Fertile 
spikelets linear-oblong, very minutely truncate, including the very 
short and obtuse shortly bearded callus 2 lin. long. Glumes equal, 
lower thinly chartaceous, pale, faintly tinged with red, flat on the 
back, glabrous or sparingly hairy (hairs whitish), margins very 
narrowly involute below and indexed towards the tips, forming there 
fine scaberulous keels, nerves about 9, of which 3-4 are intracarinal ; 
upper glume obscurely emarginate, 3-nerved, glabrous, reversedlv 
ciliate. Lower floret reduced to an oblong truncate 2-nerved 
reversedly ciliate hyaline valve. Upper floret : valve hyaline, oblong, 
rounded or obscurely emarginate at the top, delicately 3-nerved. 
reversed-ciliate, over 1| lin. long, awnless ; valvule 0. Pedicelled 
spikelets narrowly lanceolate, acute, over 2 lin. long, sparingly 
hairy; lower glume about 7-nerved; upper glume and valves as in 
the sessile spikelets ; anthers f-1 lin. long. — Cymhopogon exar- 
matus , Stapf in Journ. de Bot. 2me ser. ii. 210. Andropogon 
rufus, var. exarmatus, Stapf in Cheval. Sudania, i. 180. 
North Central. Shari Territory • on the lower Bahr Salamat, Chevalier , 
10509 ! 
I -T) 
7. H. pcecilotricha A Stapf. Perennial, 1| ft. high, with intra- 
vaginal innovations. Culms rather stout, subterete, glabrous and 
smooth, producing vegetative branches from one or several of the 
lower nodes. Leaf-sheaths tight, quite glabrous, those of the 
innovations much compressed and acutely keeled ; ligules scarious, 
ciliolate, glabrous, very short ; blades linear from an equally wide 
or slightly attenuated rounded base, long tapering to a fine point, 
rigid, over ft. by 3 lin., flat, smooth and glabrous except on the 
scabrid margins or sometimes ( Hachel ) with some tubercle-based 
hairs at the junction with the sheath ; midrib rather slender, primary 
