Brachiaria.] clvii. gramine^: (Stapf). 
I. Reticulata. 
/ Sf,PL'' 
Spikolets 3|- lin. long ; lower glume conspicuously exceed- 
ing the“ remainder of the spikelct and broader than it, 
wrapped round its sides before flowering, perennial . . . 
Spikelets less than 3§ lin. long (except sometimes in 2. 
B. dictyoneura) with the lower glume equal to or shorter 
than the remainder of the spikelet. 
* Spikelets hairy ; perennial. 
Rhachis of racemes subtriquetrous, usually wavy, the 
flat back up to ^ lin. wide ; lower valve with 
cross-veins from low down. 
Spikelets 2£-3^ lin. long ; lower glume as long or 
almost as long as the spikelet, 11-nerved; 
rhachis of racemes minutely ciliolate or very 
sparingly ciliate 
Spikelets l£-2£ lin. long ; lower glume distinctly 
shorter than the spikelet, 9-5 -nerved ; rhachis 
of racemes loosely and irregularly ciliate or 
setulosely and densely ciliate (6. B. filifolia). 
Spikelets 2-2£ lin. long, apparently 1 -seriate 
(owing to dovetailing of the two ranks) on 
a very slender rhachis ; lower glume 9-5- 
nerved. 
Lower glume § or more the length of the spikelet, 
as wide as the lower floret, 7-9-nerved ... 
Lower glume § the length of the spikelet, much 
narrower than the lower floret, 5-nerved 
Spikelets lf-2 lin. long, distinctly 2-seriate on 
a more flattened rhachis, § lin. wide; 
lower glume 11-9 -nerved. 
Blades flat, 1-|-2| lin. wide 
Blades filiform, subterete or tightly convolute, 
lin. in diam 
Rhachis of racemes herbaceous, more or less ribbon- 
like with the setulously ciliate margins curving 
over the bases of the spikelets which are placed 
alternately to right and left of a slender zig-zag 
midrib, from |-1 lin. wide; lower glume 9-11- 
nerved, equalling §— § of the spikelet ; lower valve 
with cross-veins in the upper third or tip only. 
Blades narrowly convolute or folded with a dorsally 
keeled midrib, 3-10 in. by 1-lf lin. (unfolded); 
culms erect, 3-4-noded, compactly csespitose 
with intravaginal innovations ; rhachis of 
racemes £ lin. wide ; spikelets 1| lin. long 
Blades flat, much broader with a slender midrib. 
Densely csespitose ; innovations intravaginal or 
if extra vaginal then growing up close to the 
mother- culm ; culms mostly erect or suberect, 
2-4-noded. 
Spikelets 1|-1£ lin. long on a usually copiously 
and long-setulose ciliate rhachis, £-1 lin. 
wide ; racemes usually fulvous or rufous ; 
culms 3-4- (rarely more-) noded; blades 
from a few inches to over 1 ft. by 2-4 lin. 
507 
. B. dbvoluta . 
!. B. dictyoneura. 
3. B. Rautanenii. 
1. B. Mans. 
5. B. viridula. 
>. B. filifolia. 
1 . B.falcifera. 
!. B. fulva. 
