270 
Cl vii. gramineje (Stapf). [< Cymbopogon . 
less kneed at and slightly twisted below the middle ; column smooth. 
Anthers 1 lin. long. Pedicelled spikelets linear-oblong, 2-3 lin. 
long, glabrous, more reddish than the sessile ; glumes subchar - 
taceous with 5-9 evenly distant intracarinal nerves, the upper 
thinner, 3-nerved ; valve of lower floret linear-oblong, sub-2-nerved, 
ciliolate, 2 lin. long ; upper floret reduced to a^ flower, or its valve 
present as a microscopic scale. — Stapf in Kew Bulletin, 1906, 303- 313, 
352-353 ; Chiov. Gram, da Essenze, 15. C. arabicus , Nees ex 
Steud. Svn. PI. Glum. i. 387. C. Arriani, Aitch. Cat. Punjab PI. 
174. 0. circinnatus, Hochst. ex Hack, in DC. Monogr. Phan. vi. 
599. Andropogon Schoenanthus , Linn. Sp. PI. ed. i. 1046, ed. ii. 
1481, not of Hack, and most other authors. A. bicornis, Forsk. 
FI. iEgypt.-Arab. 173, not of Linn. A. laniger, Desf. FI. Atl. ii. 
379 ( lanigerum ) ; Kunth, Enum. PI. i. 493 ; Coss. & Dur. Expl. 
scient. Algerie, ii. 48; Ball in Journ. Linn. Soc. Bot. xvi. 734; 
Boiss. FI. Or. v. 465 ; Batt. & Trab. FI. Alger. (Monoc.) 126 ; 
Balfour, Bot. Socotra, 316 ; Hack, in DC. Monogr. Phan. vi. 598 ; 
Benth. in Hook. Ic. PL t. 1871 ; Schweinf. Plant. Util. Eritr. 22, 
and in Bull. Herb. Boiss. ii. App. ii. 93. A. Olivieri , Boiss. Diagn. 
PI. Or. ser. i. fasc. v. 76. A. circinnatus , Hochst. ex Steud. Syn. 
PI. Glum. i. 387 ; Franch. Sert. Somal. 69 (circinatus) . A. Ariani , 
Edgew. in Journ. Linn. Soc. vi. 208. A. Iwarancusa, subsp. laniger , 
Hook. f. FI. Brit. Ind. vii. 203. Gymnanthelia lanigera , Anderss. in 
Schweinf. Beitr. FI. Aethiop. 306 (name only). 
Nile Land. Eritrea : Barca ; Mount Schegolgol-Mantai, Schweinfurth, 40 ; 
and without precise locality, Schweinfurth, 1020. Socotra : near Tamarida, 
Schweinfurth, 405 ! hills near Galonsir and Tamarida, Balfour , 275 ! 379 ! 
Somaliland : without precise locality, R&voil. 
Throughout North Africa, from Morocco to Tunis, Arabia, and from Meso- 
potamia to the Punjab and Ladakh. 
Once famous for its aromatic properties. Yields an aromatic oil (camel- 
grass oil). 
2. C. sennarensis, Chiov. Gram, da Essenze , 16. Perennial. 
Culms tall, erect, terete, glabrous. Leaf -sheaths compressed, very 
narrow, the lowest up to 8 in. long, firm and tough, slightly 
rough, glabrous, subglaucous ; ligules oblong, membranous, up to 
over 2 lin. long, ciliolate ; blades very narrow, linear, almost 
setaceous upwards, up to over 1 ft. by j-1 lin., folded or the 
upper flat, rigid, glabrous, the basal scaberulous on all the nerves, 
glaucous, very closely nerved, midrib slender. Spat heat e panicle 
decompound, obovoid, 1-14 ft. by J ft., formed upwards of more 
or less dense balls of racemes and spathes ; lower internodes up to 
5 in. long, uppermost quite short ; lower primary branches from 
1 J to J ft. long with usually 2 very long slender internodes below the 
first ramifications, those above the middle rapidly decreasing in 
length and forming 2-rayed tiers, each ray distichously divided up- 
