Brachiaria.] 
CL VII. GRAMINE2E (Btapf). 
549 
green, quite glabrous, often rough on the nerves above, margins 
cartilaginous, densely spinulously serrulate, primary lateral nerves 
3-6 on each side, obscure above, with numerous fine secondary ones 
between them, midrib slender. Panicle at length more or less 
exserted, rather secund, of 5-7 solitary suberect or at length spreading 
slightly lax racemes ; common axis slender, terete, angular and more 
or less channelled adaxillarily, scabrid. Racemes stout, subsessile 
or the lowest shortly peduncled (sometimes with the rudiments of 
arrested spikelets), 2-1 or the lower up to over 3 in. long, usually 
simple ; rhachis very slightly flexuous, triquetrous, up to \ lin. wide, 
scabrid along the angles, glabrous except on the pubescent basal 
pulvini : pedicels paired or upwards solitary, filiform, angular, scabrid, 
with or without some long very fine spreading hairs, the longer 
1J-2J lin. long. Spikelets or pairs of spikelets distant by 2-3 (rarely 
up to 5) lin., elliptic to obovoid-obloug in outline, subacute, more or 
less turgid, 2-2J lin. long, greenish, quite glabrous. Glumes very 
unequal ; the lower broad-ovate, subacute to almost obtuse, clasping 
at the base, over one-third the length of the spikelet, 5-nerved, side- 
nerves anastomosing ; upper glume corresponding in shape and size 
to the spikelet, 7-nerved, thinly herbaceous-membranous. Lower 
floret neuter : valve very similar to the upper glume, but 5-nerved ; 
valvule oblong, obtuse, about If lin. long, very thin, keels winged. 
Upper floret g, elliptic-oblong, subacute, up to 2 lin. long, turning 
brown ; valve and valvule coriaceous-crustaceous, somewhat coarsely 
transversely rugose, the latter with sharply projecting keels. — 
Panicum serrcefolium, Hochst. in Flora, 1855, 196 ; Schweinf. 
Beitr. FI. Aethiop. 301 ; Durand & Schinz, Consp. FI. Afr. v. 765 ; 
Chiov. in Ann. Is tit. Bot. Roma, viii. 302. 
Nile Land. Eritrea: Dembelas; along the Makatar torrent, Pappi, 6046; 
along the Albo torrent, Pappi, 6089. Ocule Cusai ; along the Tserena and 
Belesa torrents, 5250 ft., Pappi , 1810. Abyssinia : Jaja, 5000 ft., Schimper, 
2171 ! Hamedo plain, 4700 ft., Schimper, 1082 ! 
38. B. pubifolia A $ta2?/". Annual, not much over 1 ft. high. Culms 
very scantily fascicled, ascending from a shortly decumbent geniculate 
and rooting base, slender, terete, few-noded, the uppermost inter- 
node by far the longest, branched below, with all the branches at 
length flowering, pubescent. Leaf-sheaths thin, striate, at least the 
lower rather loose, pubescent ; ligules a shortly ciliolate rim ; blades 
narrowly linear from an equally wide base, tapering to an acute 
point, 2-4 in. by 2-3 lin., flat, flaccid, pale green, densely pubescent, 
margins scaberulous upwards only, primary lateral nerves 3-4 on each 
side, indistinct above, with numerous fine secondary ones between 
them, midrib very slender. Panicle long-exserted, secund, 2f-3 in. 
long, of 6-3 obliquely spreading solitary distant dense but slender 
spike-like racemes, all its axes densely pubescent ; common axis 
slender, terete or adaxillarily flattened or (upwards) channelled. 
