552 
CL VII. GrRAMINEiE (Stapf). 
\BracJiiaria . 
composite towards the base with short secondary racemes, moderately 
dense; rhachis frequently wavy, triquetrous, about \ lin. wide, with 
scattered spreading tubercle-based hairs at least downwards, angles 
scabrid ; pedicels very unequal, the longer 1 lin. long, rarely much 
longer, or the uppermost solitary, all somewhat stout and stiff, 
angular, scabrid, with or without a few tubercle-based hairs. Spike- 
lets oblong, subacute, slightly convex on the back, 1J-1J lin. long, 
glaucous, glabrous. Glumes very unequal ; lower ovate, acute or 
subacute, half as long (or nearly so) as the spikelet, membranous, 
whitish, finely 3-nerved ; upper corresponding in size and outline 
to the spikelet, thinly papery, 5-7-nerved with very few cross-veins 
near the tip, nerves greenish. Lower floret g or neuter ; valve 
very like the upper glume, 5-nerved ; valvule almost as long as the 
valve, acute with smooth keels or more or less (sometimes very 
much) reduced, slightly papillose at the base ; anthers - 8 ^~ lin . 
long. Upper floret <J, oblong, obtuse to subobtuse, 1-1J lin. long, 
straw-coloured ; valve and valvule transversely wrinkled, sub- 
crustaceous, the latter with the flaps widened and almost contiguous 
at a third or quarter from the base ; anthers about ~ lin. long. Grain 
elliptic in outline, flat on the face and the back with broad rounded 
sides, | by J lin., pale greenish. — Panicum leersioides, Hochst. in 
•Flora, 1855, 196 ; Penzig in Atti Congr. Bot. Genoa, 1893, 366 ; 
Schweinf. in Bull. Herb. Boiss. ii. App. ii. 21 ; Durand & Schinz, 
Consp. FI. Afr. v. 752 ; K. Schum. in Engl. PH. Ost-Afr. C. 101 ; 
Chiov. in Ann. Istit. Bot. Roma, vi. 162, vii. 64, and viii. 33, 302 ; 
Stapf in Kew Bulletin, 1907, 213. 
Nile Land. Nubia : O-Mareg (between Berber and Suakim), Schweinf urth, 
685 ! Eritrea : Samhar ; Lower Lava River, Schweinfurth, 1752. Island 
of Sheikh Said, Pappi, 6157. Assaorta ; Arkiko, Schweinfurth, 48, 162, 281, 
311. Amasen ; Ghinda Valley, 3300 ft., Schweinfurth, 153; Pappi, 3425, 
3745, 4027. Dongollo, Pappi, 1745! Upper Lava Valley; Maigarghebit, 
Penzig ; Gheleb, Schweinfurth, 5000 ft., 1613, 1263. Bogos ; Keren, Pappi, 
2525; Tellini, 948, 1321. Dembelas ; along the Mai Albo, Pappi, 6079. 
Abyssinia : Samen; Ussla Valley near Gurrsarfa, 4000-5000 ft., Schimper, 114 ! 
2200 ! Harrar, Bobecchi-Bricchetti ; banks of the Ganam River, at Mele Merer, 
Biva, 403. Somaliland : Upper Sheikh, Appleton ! British East Africa : 
Makindu, Linton, 173 ! Samburu, 900 ft., Kassner, 491 ! Witu, Gregory ! 
Ngomeni, Scott Elliot, 6272! Rabai Hills, Taylor ! Magarini; red sandhills, 
300-500 ft., Taylor ! 
Mozambique Distr. German East Africa : Tanga, in cultivated ground, 
Schumann, 2031 ! Dar-es-Salam, Hildebrand, 1230 ! Portuguese East 
Africa : Mozambique, in gardens, Scott ! 
Also in Tropical Arabia. i /} 7 )■( 
v f 
41 . B. Isachne, Stapf. Annual, 1-2 ft. high, loosely tufted. Culms 
geniculately ascending from a sometimes decumbent and rooting 
base, very slender, terete or angular, glabrous, 3-many-noded, much- 
branched below. Leaf -sheaths rather tight, terete or subterete, strongly 
Striate, softly and loosely hairy or glabrous except at the minutely 
