Bromus. } GRAMINEX (Stapf). 127 
short, obtuse or subobtuse ; awns of lower 
valves u nevis much shorter than those of 
e uppe .. (3) commutatus. 
Spikelets o obi: florets rather loose ; valves 
a oe oblong to ee in profile ; 
ent ire 
or 2-t 3 awns 
pe ral sce ... (4) patulus. 
Section 2. cae, (Griseb.), Annual; spikelets narrow, pei or less 
cuneiform lowe me I- (rarely nerved, upper 3-5-nerved ; es 5-7- 
nerved ; intern oie 3 rhachilla slender 
Gate species in South Africa... “a ae ... (5) maximus, 
Section 3. Festucarta (Coss. & Dur.) Perennial, often tall; lower glume 
dtanreed, upper 3—5-nerved ; valves 5~7- (very rarely y- -) nerved; awn terminal, 
inal or 0. 
wer ante 1- (rarely 3-), upper 3-nerved ; anthers 
1-13 lin. 1 er die .. (6) leptoclados. 
Lower ahatas 3-, upper “usually 5-nerved ; ‘anthers 
about 3 lin. lon 
Spikelets ginbeoeicg glumes 5-74 lin. long 5 3; valves 
74-9 lin. long, prominently nerved . {7) natalensis. 
Spikelets pubescent corstibtnd or “villous ; 
mec lin. Tong valves 6-7 lin. long ; 
nerves not prominent 
Florets rather loose ; valves linear-lanceolate ; 
in profile, narrow .. (8) speciesus. 
Florets close ; valves lanceolate-cuneate, _ 
rather broad above ... (9) firmior. 
. CERATOCHLOA. Glumes and — strongly compressed, acutely 
keeled, che -nerved, the latter usually 13-nerved. 
Only species in South Africa ... iva es ... (10) unioloides. 
I ute, _ 
2-3 lin. * fat, strongly sg searcely flaccid ; panicle oblong to 
linear-oblong, contracted, erect, rather dense, 2-3 in. long; axis 
striate, seabrid to pat ena or spree smooth below; branches 
3-6-nate, nearly a rare ta unequal, 2—4 lin. long, rarely 
longer, scabrid to coarse ely pubescent, erect; spikelets oblong, 
greyish-green, 6-10 tin, by 23-3 lin, erect, crowded, closely 
9~13- flowered ; rhachilla joints > lin. long, subclavate, stout, seabrid ; 
glumes unequal, oblong in profile, rat er broad, acute, herbaceous 
lower 22-3 lin, long, 5- to sub-5-nerved, upper 3-4 lin. long, 
7-nerved ; valves rather narrow, oblong, about 4 lin. long, pubescent 
to villous, 7 Reson dat margins almost straight to 3 of the length from 
the base, thon gradually curved or — i ak a-dislines obtnee angle 
to the livoad 2-toothed hyaline tips ; awn from close to the tip, fine, 
scabrid, straight or finally diate, "D132 lin. long; callus very 
