508 cl vii. GRAMiNEiE (Stapf). [Bmchiaria. 
Spikelets 1J lin. long on a more scantily and 
more shortly setulose-ciliate rhachis 
lin. wide ; racemes greenish ; culms 2- 
noded; blades l|-7 in. by 2-2£ lin. ... 9. B. brevis. 
Loosely csespitose ; innovation's “extra vaginal, 
sometimes growing into short creeping 
stolons ; culms very slender, often geniculate 
and ascending, 5-6-noded ; blades 3-4 in. by 
2-2| lin., thin, bright green, glabroiis or 
ciliate towards the base ; rhachis of racemes 
f— lin. wide, rather copiously and long- 
setulosely ciliate ; spikelets l|-lHin. long ... 10. B soluta. w 
** Spikelets glabrous, reticulation of upper glume and ' 
lower valve rather raised and conspicuous ; 
rhachis more or less herbaceous and flattened but 
very narrow, ]-|lin. wide ; annual. 
Spikelets 2-2.1 lin. long ; lower glume up to the 
length of ohe spikelet; anthers under lin. long 11. B. stigmatisata. 
Spikelets under 2 lin. long. 
Lower glume as long as the spikelet, 13-17 -nerved 12. B. brevis'picata. 
Lower glume half the length of the spikelet or 
less, 11 -nerved ... ... ... ... ... 13. B. reticulata. 
II. Mutic;e. 
Perennial. 
Rhachis of racemes 1-1| lin. wide, ribbon-like ; spike- 
lets 2-2|- lin. long, pubescent upwards. 
Glumes separated by a distinctly elongated internode, 
l lin . long, the lower shortly and acutely acumi- 
nate, 11 -nerved ; spikelets 2£-2| lin. long, drying < [tat a. 
brownish ; blades up to 2 ft. by 1 in 14. B. interstijn- 
Glumes separated by a short internode, the lower 
2- denticulate, 8-10-nerved (without a middle 
nerve) ; spikelets 2-2| lin. long, pale ; blades 
4-7 in. by ^-1 in ... 15, B. platytcenia. 
Rhachis of racemes up to 1 lin. wide ; spikelets l|-2, 
rarely 1 lin. long. 
Racemes mostly numerous (5 -qo ), lowest 2-6 in. 
long ; rhachis eciliate ; erect, rather tall grasses. 
Spikelets pubescent upwards, 2 lin. long ; lower 
glume 9-11 -nerved, nerve -ends anastomosing; 
rhachis 1 lin. wide ... ... ... ... 16. B. vittata. 
Spikelets glabrous ; lower glume 3-5-nerved, nerve- 
ends free ; rhachis about 2 lin. wide. 
Spikelets 2|- lin. long ; racemes simple, solitary, 
distant, up to 7 in a panicle of about 8 in. ... 17. B. latifolia. 
Spikelets 1^-lf lin. long ; racemes up to oo in 
a panicle of 4-8 in., solitary or irregularly 
approximate, sometimes in false whorls, the 
lower frequently compound and then often 
interrupted ... ... ... ... ... 18. B. mutica. 
Racemes 2-6, lowest up to 2 in. long ; rhachis ciliate, 
about | lin. wide ; base of culms decumbent. 
Spikelets hairy, 2 lin. long ; lower glume finely 
9 -nerved, nerve -ends inarching but hardly 
anastomosing; blades l|-3 in. by 4-5 lin. ... 19. B. decumbens. 
