195 
Schizachyrium.\ clvii. gramine^e (Stapf). 
exceed the spathe by J-f in., to over 2 in. long, to over 10- jointed, 
slender, greyish-red ; joints almost linear, very slightly widened 
upwards, 2J lin. long including the tubular sub denticulate suboblique 
appendage, delicately greyish-pubescent on the back with the hairs 
at the base (callus) \ lin. long ; pedicels linear with a short 2-toothed 
appendage, hairs as in the joint, but rather longer and at least the 
outer edge distinctly ciliate. Sessile spikelet narrowly linear, in- 
cluding the callus 3 lin. long, greyish. Glumes equal ; lower firndy 
chartaceous, gradually passing into a thinner 2-dentate beak, slightly 
convex on the back, densely greyish-pubescent except on the glabrous 
beak, intracarinal nerves 3, obscure ; upper obliquely lanceolate, 
acuminate, firmly membranous below, 1 -nerved, subciliolate, Lower 
floret reduced to an oblong hyaline nerveless or 2-nerved often 
purplish valve. Upper floret narrowly linear-lanceolate in profile, 
2-fid to beyond three-quarters of its length, 2 lin. long, lobes narrow, 
acute, ciliolate ; awn 6 lin. long, kneed at and twisted below the 
middle, column brown, bristle white. Pedicelled spikelet $ , lanceo- 
late, acuminate, 2-2 J lin. long, reddish ; lower glume membranous, 
finely 5-nerved, ending in a short fine bristle, sparingly hairy on the 
sides, otherwise glabrous, upper faintly 3-nerved. Valves of both 
florets oblong, subacute, hyaline, faintly 3-nerved, ciliolate. 
r Upper Guinea. French Guinea : Baffing Valley, Pdbgguin, 1774 ! . ^ ; 
9. S. semiberbe, Nees, Agrost. Bras. 336. Perennial. Culms 
rising from a short rhizome, 2-5 ft. high, erect or slightly geniculate 
at the base, many-noded, branched from the base or undivided for 
the first 3-5 internodes, rather stout, terete or compressed towards 
the base, smooth, glabrous, the lower branches suberect, solitary or 
the upper fascicled and of unequal length, the longer divided again, 
all ending in racemes which are collected into a subfastigiate foliose 
panicle. Leaf -sheaths firm, striate, glabrous or more or less hirsute, 
the lowest compressed and keeled, the upper terete, tight, those of 
the panicles spathe-like ; ligules s carious, truncate, ciliolate ; blades 
linear, shortly acute, gradually passing into the sheath or slightly 
constricted at the base, up to 1 ft. long, the lower usually shorter, 
1- 2J lin. wide, flat or folded when young, rather firm, glabrous, 
rarely sparingly hairy, particularly at the junction with the sheath, 
smooth below, scabrid above and along the margins, midrib slender, 
keeled below, lateral nerves numerous, fine, somewhat prominent 
above ; spathe very narrow, lf-2J in. long, the upper bladeless or 
with a rudimentary subulate blade, dull green or purplish-brown. 
Racemes on peduncles which are entirely or almost entirely enclosed 
in the spathe and thickened towards the urceolate minutely denti- 
culate tips, 2 to almost 3 in. long, 8-1 4- jointed, slender ; joints 2J-3J 
lin. long, linear-cuneate, semiterete, with an asymmetrical urceolate 
2- dentate appendage, smooth on the back, glabrous or rarely 
obscurely ciliolate on the margins, straw-coloured or reddish ; pedicels 
