194 FLORA OF 
Spikes dense, 1 to 2 inches long. 
Flowering glume membranous, rather acute ; spikes 
6 to 10... “e aoe 
Flowering glume broad, rigidly scarious, ciliate ... 
Dichelachne. 
Panicle very dense, almost spike-like ; spikelets very 
numerous small concealed by the long hair-like 
awns; flowering glume scabrous. Tall robust 
Panicle rather loose and narrow; awns shorter; flower- 
ing glume minutely pitted. Stems slender 
Agrostis. 
1. Palea very short or none ; panicle spreading 
Awnless; palea 0 or very minute ; leaves tufted narrow 
Awn nearly basal; leaves finer; outer glumes longer ... 
11. Palea more than half as long as the glume. 
Flowering glume about as long as the outer ones, acute, 
often minutely scabrous; awn from about the mid- 
dle; rhachis of the spikelet produced into a hairy 
bristle. Panicle spike-like — 
Flowering glume much shorter than the others. 
Panicle loose and spreading, rhachis of spikelets 
produced into a hairy bristle; awn somewhat 
basal Os 3 bn. 
Panicle spike-like; awn almost basal. 
Rhachis-bristle minute or wanting. Panicle 
short or to 10 in. long... ws = 
Rhachis-bristle conspicuous, hairy; panicle 2 
to 4 in. long nN ia 
Aristida. 
Awn 3-branched far above the base, the basal part 
spirally twisted, articulate on the glume. Flower- 
ing glume short. 
Awn 13 in. below the branches; branches about 
2 in. long 
Awn shorter ; branches usually longer : 
Awn 3-branched from its base, not articulate on the 
flowering glume, which is as long as the outer ones. 
Panicle-branches very long, with few spikelets on 
long thin pedicels; outer glumes unequal, with 
long points 
Panicle short, broad, and dense; outer glumes 
nearly equal, the 2nd rather longer than the 
flowering glume about $ inch 
SOUTH AUSTRALIA. 
barbata 
scariosa 
crinita 
sciurea 
scabra 
venusta 
densa 
Solandri 
quadriseta 
montana 
stipoides 
arenaria 
leptopoda 
Behriana 
