364 
FLORA OF ADEN. 
1. Peunisetum cencliroides A. Rich, in Pers. Syst. PI. I (1805)’ 7*2 ; ) 
Beauv. Agrost. 59, t. 13, fig. 5 ; Nees in Linnsea VII, 277, et FI. Afr. 
Austr. 70 ; Kunth, Enum. I, 162 ; Trin. Pan. Gen. 93, et in Mem Acad. 
Petersb. ser. 6, III, 181 ; Steud. Syn. PI. Glum. I, 105 ; Baker FI. 
Maurit. 441 ; Hook. FI. Brit. Ind. VII, 88 ; Anders, in Journ. Linn. 
Soc. V, Suppl. p. 39 ; Stapf. in This.-Dyer FI. Cap. VII, 433 ; Cooke 
FI. Bomb. Pres. II, 916. 
Pennisetum ciliare Link Hort. Bot. Berol. I, 213 ; Steud. Syn. PI. 
Glum. I, 105 ; A. Rich. Tent. FI. Abyss. II, 384 ; Batt. et Trab. FI. 
d'Alg. p. 38 ; Boiss. FI. Or. V, 445 ; Scbweinf. Beitr. FI. Aetbiop. 301, 
Engl. Hochgebirgsfl. Trop. Afr. 125 ; Durand & Schinz. Consp. FI. 
Afr. V, 778 ; Hack, in Bull. Herb. Boiss. IV, App. Ill, 16. 
Cencbrns ciliaris Linn. Mant. PI. 302. 
Cencnrus pennisetiformis Hocbst. et Steud. ex Boiss. FI. Or. V, 
445. 
Panicum vulpinum Willd. Enum. Hort. Berol. 1031. 
Description : — Perennial ; culms ascending from a branched genicu- 
late and often decumbent, many-noded base, l|-2 feet long, smooth, 
glabrous, or scantily hairy, upper internodes more or less exserted, the 
uppermost much so, and very slender ; leaves quite glabrous or some- 
times with scattered fine stiff hairs ; sheaths tight, the lower persistent, 
or at length decaying, leaving the internodes naked ; ligule a very 
narrow densely ciliate rim ; blades linear, long tapering to a setaceous 
point 3-8 inches by l£-3 lines, usually flat, often flaccid, usually 
scaberulous above or along the margins. 
Panicle spike-like, cylindric, dense, 1-4 inches by 4-6 lines, pallid 
or purplish, often flexuous ; rhachis finely scaberulous like the very 
short pedicels ; involucres of very numerous bristles, outer bristles fine 
scabrid, shorter or slightly longer than the spikelets, inner thickened 
towards the base, ciliate, much longer (about £ inch long), one usuallv 
conspicuously exceeding all the rest; spikelets 3-1 within each 
involucre, lanceolate-oblong, 2-2 \ lines long, pallid, glabrous ; glumes 
hyaline, ovate, acute or acuminate, usually 1-nerved, upper about 
1 line long, lower shorter, sometimes nerveless ; florets equal or subequal, 
lower male or barren, very rarely hermaphrodite ; valves ovate-oblong, 
abruptly mucronate, acuminate, 5-nerved ; pales subequal, truncate ,* 
lodicules 0 ; anthers slightly over 1 line long, tips acute, naked ; styles 
free nearly from the base. 
Fruits : — March (Schweinf.) . 
Locality In sandy plains (Hooker, Thomson); gravelly slopes and 
ravines of Shum Shum Range (Defl., Ellenbeck, Busse); great valley 
