GENERA AND SPECIES. 
Alopecurus. 
Stems prostrate in the lower portion, thence abruptly 
bent upwards. Annual, glabrous; leaves lax, flat 
Stipa. 
1. Flowering glume glabrous. Panicle-branches 
hairy, lower ones whorled. 
Panicle-branches with eae hairs, ig 4 to 6 inches 
long : 
Panicle-branches with Shot ee ; Huiolets ities 
outer glumes short 4 : ; 
11. Flowering glume hairy, its hyaline margin 
dilated on each side of the awn; palea as 
long as the glume. 
Panicle narrow and compact. 
Outer glumes colourless; leaves very Tong, cylin- 
drical, pungent 5 
Outer glumes acute, ectlonaat- ren flat or convo- 
lute; ligule short, not ciliated ress 
Panicle of 1 to 3 flowers; leafless; stems branched, 
rampant extending for a few feet 
11. Flowering glume hairy, its margin not 
dilated ; palea not so long as the glume. 
Ligule elongated, not ciliated; panicle loose; leaves 
slender, filiform; lowest glume er awn 
slightly rough ... ; 
Ligule short, ciliate; awn plumose airy in the lather 
part; panicle dense 
Ligule short, ciliate; awn py or shelley péhanoeni: 
Lowest glume usually dilated and truncate or 
toothed; flowering glume narrow; panicle dense 
Lowest glume usually 3-pointed; flowering glume 
rather broad ; panicle very loose .. , bios 
Lowest glume always fine-pointed ; Heat loose ; 
leaves slender, glabrous or pubescent 
Chloris. 
Spikes slender, about 10 in number, about 3 in. long ; 
spikelets acute. — 
Flowering glume_bifid, awnless, usually scabrous 
Flowering glume awned or very minutely toothed 
Spikes slender, 6 to 10, 3 to 6 in. long; spikelets cune- 
ate, truncate ; flow ering glume, obtuse 
N 
geniculatus 
elegantissima 
Tuckeri 
teretifolia 
flavescens 
Muelleri 
setacea 
semibarbata 
pubescens 
aristig/umis 
scabra 
pectinata 
acicularis 
truncata 
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