Panicum.] 
CL VII. GRAMINEiE (Stapf). 
723 
77. P. calvum, Stapf. Apparently a rambling perennial, several 
ft. high. Culms very slender from a geniculate subprostrate 
or ascending base, rooting from the lower nodes, many-noded and 
with long ascending or suberect branches, terete, very smooth, 
glabrous, internodes 2-5 in. long, of the flowering culms mostly 
exserted. Leaf-sheaths tight, terete, prominently finely striate, 
quite glabrous and smooth ; ligule a very narrow membranous rim ; 
blades lanceolate to linear-lanceolate from a rounded and much 
constricted or subpetiolate base, finely acuminate, 2-4 in. by 3-8 lin., 
spreading, flat, thin, green, loosely and appressedly hairy to glabrous, 
margins scaberulous, midrib slender, whitish below, primary lateral 
nerves 3-d, very fine and distant, distinct on both sides or at least 
below, secondary nerves 5-8 in the intervals, connected by distinct 
cross-veins. Panicle exserted, often long, erect, flexuous or ultimately 
stiff, about 6 in. by 4-8 in., opening widely and very loose, divided to 
the third or fourth degree ; common axis terete, very slender to sub- 
filiform, smooth and glabrous, lowest internodes usually not much 
over 1 in. long ; primary branches mostly very loosely divided from 
the base, forming false whorls, or 2-nate branches, filiform, like the 
following divisions smooth or very slightly rough upwards, the 
longest up to over 4 in. long, internodes 1-J in. long (sometimes up to 
2 in.), secondary branchlets similarly divided, ultimate divisions sub- 
capillary, bearing few much scattered spikelets ; pedicels very 
unequal, very short to 4 lin. and even 6 lin. long, with minutely discoid 
tips. Spikelets lanceolate-oblong, acute, about 1J lin. long, green, 
quite glabrous. Glumes thinly membranous, very unequal ; lower 
lanceolate, acute, 1-3-nerved, two-thirds to three-quarters the length 
of the spikelet ; upper corresponding in length and outline to the 
spikelet, 7-nerved. Lower floret reduced to a valve, very similar 
to the upper glume but 5-nerved. Upper floret q| oblong, acute, 
up to 1 lin. long, pale, smooth and polished ; valve and valvule 
papery ; anthers \ lin. long. 
Nile Land. Uganda : Ruwenzori; in shady forest near Kivata, 6000-8000 ft., 
Scott Elliot, 7647 ! 7686 ! Mt. Elgon ; in thickets about Butalivi, 5000 ft.. 
Bummer , 3727 ! British East Africa : Aberdare forests, 7500 ft., Battiscombe , 
685 ! 
78. P. subobliquum, Stapf. Annual (?), base unknown, apparently 
several ft. high. Culms many-noded, sparingly branched, slender, 
glabrous and smooth, intermediate internodes up to 6 in. long and 
bared at the base by the fall of the sheath, upper shorter. Leaf- 
sheaths tight, prominently striate, densely ciliate upwards, minutely 
pubescent in the grooves, those supporting branches thrust aside 
by the branch and ultimately thrown off, leaving an irregular cuff- 
like base behind ; ligule a narrow membranous ciliolate rim ; blades 
lanceolate to linear-lanceolate from a rounded and much constricted 
base, tapering to a long often linear acute acumen, 2-6 in. by 7-11 lin., 
