364 
CLVII. GRAMINEJE (Stapf). 
\Hypanhenia. 
tubercle-based hairs up to over 4 lin. long, each with a linear entire 
or 2-dentate dark purple scarious appendage ; pedicels very slender 
filiform, up to 2 lin. long, shortly ciliate. Homogamous pair of 
spikelets 1 at the base of the lower raceme only. Fertile spike- 
lets narrowly linear, subacuminate, excluding the callus 4 lin. long, 
pale, glabrous or pubescent near the tips ; callus slender, acute, up 
to 1 J lin. long, shortly, bearded along the sides. Glumes subequal, 
subcoriaceous, lower 2-mucronate, 9-nerved, middle nerve prominent 
between 2 fine grooves, margins broadly involute, inflexed in the 
acumen, keels fine, scabrid ; upper glume obliquely truncate, acute, 
3-nerved, sparingly ciliolate upwards. Lower floret reduced to an 
oblong sub-3-nerved ciliate hyaline valve. Upper floret ^ : valves 
stipitiform, 2-dentate, with distinct narrow hyaline margins, teeth 
linear, subulate, 1J lin. long, ciliolate ; awn somewhat stout, lf-2 
in. long, column fulvously villous, bent at or above the middle, 
somewhat longer than the bristle : valvule 0. Pedicelled spikelets 
$ or sometimes neuter, linear-lanceolate, long and acutely acumi- 
nate, up to 5 lin. long, dark purple or violet, glabrous ; lower glume 
chartaceous, mucronate to shortly aristulate, 9-11 -nerved, keels 
rigidly ciliolate upwards ; upper glume slightly shorter, sublinear, 
very acute, 3-nerved ; valves hyaline, ciliate, lower oblong, 3-nerved, 
up to 4 lin. long, upper very narrow, 1 -nerved, or both valves more or 
less reduced ; anthers 2 lin. long. Spikelets of the homogamous 
-j- pairs like the pedicelled, but muticous. — Andropogon Newtonii , 
Hack, in Bolet. Soc. Brot. iii. 137, t. 2, fig. 4, and in DC. Monogr. 
Phan. vi. 644 ; Durand & Schinz, Consp. FI. Air. v. 719. 
Lower Guinea. Angola : Mossamedes ; Humpata, Newton ! and without 
precise locality, Pearson ! 
Var. macro., Stapf. Leaf-blades often more or less revolute along the margins, 
finely pubescent, or at length glabrescent or hirsute at the base only. Inflor- 
escence frequently more scanty than in the type, with narrow spatheoles and 
very narrow almost subulate barren pedicelled spikelets reduced to a 7-9- 
nerved lower glume, and a very small 3-nerved upper glume ; awns of the fertile 
spikelets slightly more slender, with short to very short fulvous hairs. 
Lower Guinea. Angola :( Benguella ; country of the Ambuellas and Gangu- 
ellas, Munongue, in sandy sunny places and inundated meadows,) Gossweiler, 
2456 ! 2460 ! (sources of the River Kuariri, in thickets,) Goss weiler, 2632 ! 
and without number, Gossweiler ! Mossaca-Kuelai, in vtoodsj Gossweiler, 3125 ! 
Mozambique Distr. Rhodesia : Mumbwa (28° E. Lon., 15° S. Lat.), Mrs. 
Macaulay, 61 ! Salisbury, Mrs. Gr aster, 59 ! 
46. H. Stolzii, Stapf. Perennial, densely csespitose, up to 3 ft. 
high, with intravaginal innovations. Culms slender, simple for 
about 4 internodes below the panicle ; lower internodes (except 
sometimes the lowest which may be short, more or less compressed, 
and hairy) up to 9 or 10 in. long, terete or compressed downwards, 
glabrous and smooth ; sheaths rather firm, narrow and produced into 
minute auricles at the mouth, the lower at length slipping off the culm 
and convolute, the upper tight, terete or slightly keeled upwards ; 
ligules truncate, very short, less than \ lin. long, laterally adnate to 
