562 
CLVII. GRAMINEA5 (Stapf). 
[Brachiaria. 
fine and close, the primary lateral (3-4) differentiated and promi- 
nent below only, midrib very slender. Panicle secund or subsecund, 
narrow or semi-ovate in outline, 2J-3J in. long, of 7-10 secund 
oblique and often arching somewhat loose racemes ; common axis 
very slender, terete and adaxillarily channelled or upwards slightly 
flattened, pubescent. Racemes sessile or subsessile, mostly compound 
downwards with short 4-2-spiculate secund secondary racemes, 
the lowest 1-24 or 3 in. long, the following gradually shorter ; rhachis 
finely filiform, J lin. wide, subtriquetrous, scabrid and more or less 
ciliate or pubescent with short white hairs, hardly wavy at all ; 
pedicels paired or solitary upwards, the paired unequal, the longer up 
to over ! lin. long, filiform, with a small beard of white hairs near the 
tips. Spikelets or pairs or clusters of spikelets about 1 lin. apart, 
those of a pair or cluster imbricate, otherwise hardly contiguous, 
slightly nodding, obovoid, rather convex on the back, £— } lin. long, 
the obtuse or subacute apex concealed in a white coma. Glumes 
very unequal ; the lower ovate, subacute or acute, thinly membranous, 
3-nerved, finely pubescent ; upper broad elliptic-oblong, shortly 
acute, equalling the spikelet, membranous, finely 5-nerved, pubescent 
with a transverse fringe of white hairs below the apex, the hairs up 
to over \ lin. long, forming a coma. Lower floret neuter : valve 
similar to the upper glume and of equal length, but concave on the 
back along the middle with the apex often slightly incurved ; valvule 
narrowly oblong, delicate, the narrow keels giving out upwards. 
Upper floret elliptic-oblong, subacute, almost as long as the lower ; 
valve and valvule thinly crustaceous, very finely granular. Anthers 
| lin. long. — Panicum comatum, Hochst. ex A. Rich, Tent. FI. Abyss, 
ii. 376 ; Steud. Syn. IT" Glum. i. 57 ; Durand & Schinz, Consp. 
FI. Afr. v. 743 ; Chiov. in Ann. Istit. Bot. Roma, viii. 30, 300. 
Nile Land. Eritrea: Assaorta ; Mount Dyot, 3900-5000 ft., Pappi, 5758. 
Amasen ; Ghinda and neighbourhood, Terracciano & Pappi, 108; Pappi, 
4060, 4217,4801; Tellini,\(S%7. Scimezana; Mount Matara, 8000 ft., Pappi, 
934. Abyssinia: Tigre; on rocks near Gafta, Schimper, 1196! and without 
precise locality, Sclviniper, 1017 ! 1076 ! 
Imperfectly known species. 
49. Panicum (Brachiaria) chaetorrhachis, Hack, ex Heering in 
Arbeit. Deutsch. Landwirtsch.-Gesellsch. Heft 197, 15 ( name only). 
Lower Guinea. Amboland : Otawifontein, according to Heering. 
50. Panicum (Brachiaria) Emini, Mez in Engl. Jahrb. xxxiv. 135. 
Perennial (?). Culms slender to very slender, 1 ft. high. Leaf- 
sheaths keeled upwards, with usually scanty long hairs on the back 
and at the nodes ; ligules very short, with long dense white hairs ; 
blades suberect, lanceolate or narrowly lanceolate from a roundish 
base, gradually tapering to an acute point, about 2-2 J in. by 3 lin., 
flat, membranous, loosely long-hairy on both sides, margins cartila- 
ginous' crisped, ciliolate* midrib slender. Inflorsecence erect, secund, 
