340 
CLvu. graminea; (Stapf). \Hyparrhenia. 
ciliolate along the keels, one side often more or less involute, upper 
shorter, very acute, 3-nerved, ciliate upwards ; valves reduced to 
small ciliolate scales. — Cymbopogon Schimperi, Rendle in Cat. Afr. 
PI. Welw. ii. 155. 
~-| Lower Guinea. Angola : Cazengo ;( in damp reed-grown places near Dala- 
tando,- We.lvjitsch, 2947! Golungo Alto; (in reedy places throughout the 
district, "Welwitsch, 2953 ! Sange ; Cacarambola, W elwitsch, 7219 ! Cambondo, 
Welwitsch, 7247 ! 
According to Welwitsch this grass grows socially and is very variable in 
habit. The culms are “first erect, then ascending and rooting,” and up to 
3 or 4 lin. thick at the base. 
Some panicles collected by Buchanan at Umpumulo, Natal (no. 229) and 
referred by me to Andropogon cymbarius, var. lepidus, in Dyer, FI. Cap. vii. 361, 
agree in every respect with those of the Angolan plant described above. 
28 . H. formosa, Stapf. Perennial, 8-10 ft. high. Culms (base 
not seen) somewhat slender, terete, glabrous, smooth, with some 
mixed branches below the panicle or almost simple. Leaf-sheaths 
terete, glabrous or softly hirsute towards the mouth ; ligules scarious, 
rounded, up to 1 \ lin. long ; blades linear, gradually narrowed 
downwards or almost equally wide and constricted at the base, 
long-tapering to a fine point, to over 1J ft. by up to. 6 (or even 7) lin., 
somewhat firm and rigid, or slightly flaccid and drooping, pale 
green, glabrous or with some long fine spreading hairs near the base, 
rough to spinulously scabrid along the margins, more or less rough 
on the upper, less so to smooth on the lower surface, midrib relatively 
slender, primary lateral nerves up to 7 on each side, slender. Spath- 
eate panicle oblong, leafy, up to over 1 ft. long, rather dense ; 
primary internodes up to 8 or more, lowest 2-2 J in. long, the follow^ 
ing gradually shorter ; primary tiers up to 6- (or more- h) rayed, 
the lower and intermediate mixed, their compound rays up to 4- or 
5-noded and up to 4-5 lin. long, bearing secondary tiers only ; ulti- 
mate rays finely filiform, flexuous or arching, J-l in. long ; subtend- 
ing leaves like the preceding ones except for the shorter and wider 
sheaths, their blades well-developed, flexuous, overtopping the 
panicle. Spatheoles permanently cymbiform, broad-lanceolate, 
acutely acuminate, 10-15 lin. by 1 J— 1 J lin., scarious, turning 
purplish-red, glabrous ; peduncles finely filiform, in the flowering 
state 4-7 lin. long, with a beard of spreading fine white tubercle- 
based hairs up to 2J lin. long towards the tips. Racemes pale 
greenish-brown, subcontiguous or slightly spreading, about 6 lin. 
long, 6-awned per pair ; bases very short, densely bearded, beard like 
that of the peduncle but upright, tips obliquely truncate, obscurely 
auricled ; joints very slender, filiform, almost 1 lin. long, subobliquely 
truncate, shortly ciliate, cilia white ; pedicels very similar, rather 
longer. Homogamous pair of spikelets 1 at the base of the lower 
raceme only. Fertile spikelets linear-oblong, 2-2J lin. long, pale 
greenish or brownish at the tips ; callus very short, obtuse, shortly 
