276 
cl vii. GRAMiNEiE (Stapf). [Cymbopogon. 
below, lobes sublinear, ciliolate, awn slender, 5-6 lin. long, distinctly 
differentiated into a dark brown twisted column and a yellowish 
bristle. Pedicelled spikelets linear-lanceolate, acute, 3J lin. 
long, brownish, glabrous ; glumes subequal, lower chartaceous, 
with scabrid keels and 7-9 very close intravaginal nerves, upper 
membranous, acute, 3-nerved, keeled ; valve linear-oblong, almost as 
long as the upper glume, hyaline, ciliate, faintly 2-nerved ; anthers 
over 1 lin. long. — Andropogon commutatus , Hack, in DC. Monogr. 
Phan. vi. 612 ; Durand & Schinz, Consp. FI. Afr. v. 708 ; Schweinf. 
in Bull. Herb. Boiss. ii. App. ii. 93 ; Chiov. in Ann. Istit. Bot. 
Roma, vii. 61 and viii. 286 (partly?). A. flavicundus, Hochst. ex 
Chiov. ll.cc. Gymnanthelia commutata, Aschers. & Schweinf. in 
Schweinf. Beitr. FI. Aethiop. 306. 
Nile Land. Eritrea : Barka, by the Shegolgol-Mantai, 2950 ft., Schwein - 
furth , 46 ; by the Messiam, below Mai-Mafales, very common in open bush, 
4600 ft., Schweinfurth, 45! Amasen; Harara, near Ghinda, Pappi , 4492! 
Lesa Mountains, Pappi , 4705 bis ; Mat-Allat, Pappi , 4799. Sarae ; along the 
Mareb, Debarroa, 6000 ft., Pappi, 473. Ocule Cusai; Deae-Mere, 6550 ft, 
Pappi, 1704 ! Scimenzana ; plateau of Ghebba, 8100 ft., Pappi, 894. Abys- 
sinia : Jelajeranne, Schimper , 685 ; and without ’precise locality, Schimper, 
1801 ! British Somaliland : Ogaden, Riva , 315. 
Chiovenda distinguishes two colour varieties, (a) flavicundus , with pale 
yellowish panicles, corresponding to Schimper’s specimens which constitute 
the type, and (/ 3 ) violaceus with intensely violet spikelets. All of Pappi’s 
specimens with the exception of no. 1812, are referred to this form. The deter- 
mination of Riva’s plant from the Ogaden is, according to the same author, 
doubtful. 
cQyjiv-ZxjrA 
6. C. floccosus A Stapf. Perennial, 1-1J ft. high, densely csespitose, 
with numerous intravaginal innovations from an oblique rhizome and 
a coat of short old weathered sheaths. Culms very slender, erect, 
subgeniculate or^ terete, simple and 2-noded below the panicle, 
glabrous, smooth. Leaf-sheaths firm, terete, glabrous, smooth, the 
basal about 1-| in. long, tough and long-persistent, slightly widened 
downwards, the cauline very tight and shorter than the internodes ; 
ligules very short, truncate, membranous, subciliolate ; blades 
very narrow-linear, setaceous and flexuous or circinnate upwards, 
up to 6 in. by J-J lin., convolute in bud, soon flat, firm and more 
or less rigid, glaucous particularly above, glabrous except for scanty 
long extremely fine spreading hairs, smooth below the more or less 
scaberulous setaceous points, midrib and nerves fine, the latter 
slightly raised above. Spatheate panicle scanty, loose, narrow, 
3-6 in. long ; internodes 2-4, lowest 2-4 in. long, upper gradually 
decreasing ; primary branches forming up to 4-rayed tiers ; rays 
finely filiform, 1 j-j in. long, at length subequal, glabrous ; spathes 
herbaceous, glabrous, very narrow, acuminate, 1|-1 in. long, the lower 
with a short herbaceous blade, the upper terminating with a flexuous 
bristle. Spatheoles very narrow, acute, subherbaceous to scarious, 
pale, | to 1 1 in. long ; peduncles finely filiform, mostly 4-6 lin. 
