322 
like the pedicels, stout, trique- 
trous and more or less grooved 
between the — lower 
valve ¢ - 
Lateral jreteblete sarending. 
slender, triquetrous but not 
grooved between the angles; 
lower valve 6 - 12. decompositum. 
i 
| 
. paludosum. 
Panicle contracted, or if lenuiee. 
then with branches not rigid and 
straight, exserte 
Culms wiry, many-noded leaves 
not over 0-3 cm. 
Spikelets 3- ib mm. long; 
panicle contracted, flexuose - 13. Buncei. 
Spikelets 2-5 mm. long; 
panicle spreading, not 
flexuose - - - - \ 14, larcomianum. 
Culms not wiry, or if so, the 
not more than 3-noded ; eaves 
0-3-1 cm. wide : 
Spikelets 2-5-3 mm. long, 
panicle many - flowered, 
with the spikelets evenly 
distributed throughout ; 
nodes _oaescncinda leaves 
15-30 em. long - 15. Mitchelli. 
Spikelets about 2 mm. ad, 
panicles few-flowered, with 
the spikelets in pairs at the 
‘ends of the long lateral 
branchlets; nodes bearded; 
leaves usually about 8-15 
om. long’: .:« - - - 16. effusum. 
tt Culms many-noded, branching at the 
nodes, prostrate or creeping, annual : 
Spikelets 2-3 mm. long : 
Plants glabrous; ems very 
soft, compressible 
Panicle inay-dovwed, 
large, decompound effuse - 17. acroanthum. 
Panicle few-flowered, about 
4cm. long, sparingly branched 18. obseptum. 
Plant clothed with short 
tubercle-based hairs; stems 
ha: rather wiry; panicle 
scanty, 3—4 em. long - - 19. lachnophyllum. 
