Andropogon.] clvji, graminea; (Stapf). 
253 
straw-coloured or greenish and tinged with purple ; joints cuneate- 
oblong, 1J lin. long, shortly ciliate up to two-thirds on one side 
and almost up to the middle on the other (cilia J lin. long), sub- 
obliquely truncate, the pedicels less convex on the back than the 
joints. Sessile spikelets all (?) heterogamous, tightly wedged in 
between joint and pedicel, linear in front view, about 2J lin. long, in- 
cluding the minute obtuse shortly bearded callus. Glumes unequal, 
lower slightly shorter than the upper, firmly chartaceous, minutely 
truncate, deeply and narrowly grooved between the keels which are 
smooth and obtuse below and scabrid to spinulously ciliolate about 
the middle, intracarinal nerves 2, rather stout, 1 on each side of the 
bottom of the groove, keel-nerves one, or if two very close ; upper- 
glume boat-shaped, acuminate, mucronate or subaristulate, sub- 
chartaceous, 1 -nerved, broadly rounded on the back below, keeled 
upwards, keel rigidly ciliolate, margins minutely ciliolate. Lower 
floret reduced to a narrow oblong 2-nerved ciliate subhyaline 
valve 2 lin. long. Upper floret $ : valve oblong, 1| lin. long, 
very shortly 2-lobed, acute, margins conspicuously ciliate, awn 
fine, about f-1 in. long, flexuous, kneed at and twisted 
below the middle ; valvule a hyaline nerveless linear-oblong scale, 
1 lin. long. Anthers over 1 lin. long. Pedicelled spikelets $ or 
neuter, and more or less reduced, lanceolate-oblong, acute, 2-3 lin. 
long, greenish or purplish ; glumes equal, membranous, the lower 
with about 7-9 scaberulous intracarinal nerves, shortly aristulate, 
keels rigidly ciliate ; upper glume acuminate, mucronate, sub-3- 
nerved ; valves of both florets if perfectly developed hyaline, 
oblong, acute, ciliolate, up to over 2 lin. long, the lower 2-, the 
upper sub-3-nerved, and with a ciliolate valvule almost half as long. 
Lower Guinea. Angola : Benguella ;( country of the Ganguellas and Arnbo- 
ellas, 1 Gossweiler , 2585 ! 
A Mozambique Distr. Rhodesia : Salisbury, Mrs. Craster, 61 ! 
35. A. heterantherus, Stapf in Kew Bulletin , 1908, 409. Perennial. 
Culms tightly fascicled, with a few extravaginal innovation-shoots 
springing from the short slender rhizome, 1J ft. high or higher, 
glabrous, smooth, 5- or more-noded, branched almost all along or 
simple below, internodes slender, the lowest wiry, mostly shortly 
exserted from the sheath, stem-nodes usually slightly swollen. Leaf- 
sheaths tight, finely striate, glabrous or the upper more or less 
hirsute ; ligules scarious, very short, truncate ; blades linear, 
constricted and rounded at the base, tapering to a long setaceous 
point, 4-6 in. by 3 lin., flat, green, with long white hairs scattered 
along the margins and collected into a beard above the ligule, smooth, 
midrib slender, primary lateral nerves above 5 on each side ; sub- 
tending leaf with a permanently somewhat loose sheath, about 3 in. 
long, glabrous, and a very narrow reduced blade. Peduncles filiform, 
glabrous, 5-6 in. long ; tips truncate. Racemes 2-nate, one sessile, 
