378 
clvii. GRAMiNEiE (Stapf). [. Hyparrhenia . 
linear-lanceolate to almost linear, 4-5 lin. long, acute, glabrous 
or minutely pubescent, pale green ; lower glume thinly char- 
taceous, usually aristulate with a bristle (from 1-6 lin. long) arising 
from between 2 minute teeth, or muticous, intracarinal nerves 
about 5, faint, keels rigidly and minutely ciliolate or scaberulous ; 
upper glume sublinear, acute, 3- to sub-5-nerved, reversedly ciliate ; 
lower valve if present narrowly linear, hyaline, faintly 3-nerved, 
ciliate, up to 3J lin. long, or more or less reduced ; upper suppressed ; 
anthers up to 2 lin. long. 
Upper Guinea. Northern Nigeria : Lokoja, Dalziel, 299. 
North Central. Oubangi territory : Mbouras ; Tuburi Marsh, Macleod ! 
57. H. Cornucopiae^ Stapf. Annual ? Base unknown. Culms 
simple below the panicle, terete, glabrous and smooth. Leaf- 
sheaths terete, glabrous, smooth ; ligules scarious, rounded, 1-2 
lin. long, glabrous ; blades linear from a narrower base, tapering to 
an acute point, up to over 1J ft. by 3-5 lin., somewhat flaccid, or at 
least flexuous, green to purplish or reddish, scaberulous upwards, 
scabrid on the margins ; midrib slender, primary lateral nerves 
3-4 on each side. Spatheate panicle foliate, loose, more or less 
flaccid, up to 1 ft. long, of 4-5 distant or approximate 3-6 -rayed 
mixed or upwards simple tiers, compound rays comparatively short 
and few-noded, simple rays filiform, flexuous, the lowest up to 4 in. 
long, the uppermost not much over 1 in. long ; subtending leaves and 
snathes with long blades mostly overtopping the panicle. Spatheoles 
narrowly lanceolate, very long and finely acuminate, up to 3 in. 
by 1-2 J lin., subherbaceous, glabrous, at length inrolled from the 
margins ; peduncles very slender, filiform, 1-1 J in. long, arching 
or recurved, shortly bearded, about 3 lin. below the tips. Racemes 
contiguous, at length epinastically reflexed, stout, dull purplish or 
reddish, up to over 1 in. long, 2-awned per pair; bases some- 
what unequal, one very short, the other up to over 1 lin. long, 
pubescent to villous in the fork, otherwise glabrous, produced into 
a large obovoid-cuneate entire or crenulate scarious glabrous nerved 
appendage, 4-5 lin. long, and embracing the base of the succeeding 
trio of spikelets like a cornucopia ; pedicels filiform, 2 lin. long, 
ciliate or villous all over. Homogamous pair of spikelets 1 at the 
base of the lower raceme only. Fertile spikelets oblong, almost terete 
in cross section, up to 5 lin. long excluding the callus, pubescent ; 
callus very slender and acute, 2J lin. long, densely villously bearded 
on the back and sides. Glumes equal, coriaceous ; the lower thick- 
ened, brown and more or less constricted from the back below the 
hyaline 2-mucronate tip, puberulous all over with a deep groove 
corresponding to a slender ridge on the inner side from the con- 
striction to the base, 6-nerved, with an additional middle nerve in 
the tip, the 2 innermost nerves close to the groove, the others rather 
distant ; upper glume broad-oblong, with a hyaline deltoid subacute 
