V 
Tanicum .] clvii. GtRamineje (Btapf). 
721 
ligule a densely ciliolate rim ; blades lanceolate-linea^ to linear ^ 
from a very slightly rounded base, tapering to a very acute point, 
2-3 in. by 2-3 lin., spreading, flat, thickly herbaceous, greyish-green, 
very scabrid above and along the margins, densely pubescent below, 
midrib and nerves fine, prominent or almost lamellate above, much 
less conspicuous below. Panicle long-exserted, open and loose, ovate 
to broad elliptic-oblong in outline, 4-5 in. by 2-3 in., divided'to the 
fourth degree, bearing on the common axis and all its divisions short v 
fine spreading hairs with clavellate s glandular tips, otherwise glabrous ; 
common axis filiform, angular, smooth, lower and intermediate 
internodes mostly 8-5 lin. long ; primary branches solitary, loosely 
divided from the base, sometimes forming imperfect false whorls, 
longest up to 2J in. long, finely filiform, flexuous, terete, smooth, 
secondary branchlets similarly divided, up to over 1 in. long, 
•capillary ; pedicels 1-2 J lin. long, very fine, flexuous, very slightly 
thickened towards the tips. Spikelets oblong, subacute, hardly 
compressed, § to almost 1 lin. long, green, tinged with purple, glabrous. 
Glumes unequal, membranous, prominently nerved; lower a small 
roundish shortly 3-toothed scale, 3-nerved, lin. long ; upper 
sub quadrate, with 5 fine acute teeth, four-fifths to half the 
length of *the spikelet, with 1 nerve for each tooth and a faint inter- 
mediate nerve here and there. Lower floret barren, reduced to a 
broad-oblong valve four-fifths to five-sixths the length of the spikelet, 
with 5-7 short teeth and as many nerves. Upper floret oblong, 
acute, smooth, whitish or suffused with purple, as long as the 
spikelet ; valve and valvule thinly papery, the valve finely pubescent 
at the tip. 
South Central. Belgian Congo : Katanga ; near Elisabethville, on dry wooded 
ground, Hornbte, 54 ! 
,, X L 
75. P. acrotrichum, Hook, f in Journ. Linn. Soc., Bot., vii. 226. 
Perennial (?), base unknown. Culms very slender, erect or genicu- 
lately suberect, apparently 4- or more-noded, sparingly branched, 
terete, glabrous and smooth, upper internodes 3-5 in. long. Leaf- 
sheaths tight, terete, prominently finely striate, densely ciliate, 
otherwise glabrous, smooth ; ligule reduced to a minutely ciliolate 
rim ; blades lanceolate from a rounded and much constricted to 
subpetiolate base, finely acuminate, about 3 in. by 6-8 lin., spreading, 
flat, thin, green, very sparingly and finely hairy, margins scaberulous, 
midrib very slender, whitish below, primary lateral nerves 3-4, very 
fine and distant, distinct below only, secondary nerves 5-7 in the 
intervals connected by delicate cross- veins. Panicle exserted, erect, 
somewhat flexuous and delicate, 3-6 in. long, contracted or more or 
less open, divided to the third degree ; common axis terete, filiform, 
smooth, lowest internodes 1-2 in. long, lower primary branches 
solitary or 2-nate, divided from f-lj in. above the base, finely 
filiform, subangular, like the higher divisions smooth, or very slightly 
FL. TROP. AFR. VOL. IX. — PT. 4. 
3 A * 
