122 
Botanical description (B. Fl., vii, 576).—A slender, tufted grass, 
closely resembling the typical form of A. scalra, with still finer leaves. 
Panicle loose, with long capillary branches or contracted in some of the smaller 
specimens. 
Outer glumes very acute, about 1 line long. 
Flowering glume shorter, broad, hyaline, and remarkably truncate, enveloping the 
flower, with a dorsal twisted awn, affixed very near the base and protruding 
beyond the outer glumes. 
Palea none. 
Value as a fodder.—Unknown. 
Habitat and range——Found in all the Colonies. In New South 
Wales found in southern mountainous (particularly Alpine) districts. 
We have it from Pretty Point (Mt. Kosciusko), 5,500 feet. 
55. DEYEUXTA. 
Spikelets one-flowered, pedicellate or rarely sessile in a panicle 
either loose and spreading or narrow and spikelike, the rhachis of the 
spikelet articulate above the outer glumes, usually bearing a tuft of 
hairs round the flowering glume and usually produced beyond it in a 
small ciliate or rarely glabrous bristle very rarely bearmg an empty 
glume or imperfect flower, sometimes very minute, rarely deficient. 
Glumes three; two outer ones persistent, keeled, unawned, flower- 
ing shorter and very thin, about as long or rarely longer and mem- 
branous, broad, enclosing the flower, five-nerved, with a fine dorsal 
awn usually bent and twisted, rarely short and straight or very rarely 
deficient. 
Palea thin, more than half as long as the glume, faintly or promm- 
ently two-nerved. 
Styles distinct, short. 
Grain enclosed in the glume and palea and sometimes partially 
adhering to them. 
Flowering glume very thin, almost hyaline, much shorter than the 
empty ones. 
Panicle loose and spreading or in smaller plants narrow. Rhachis 
of the spikelet produced into a hairy bristle. 
Spikelets 14 to 2 lines long. Flowering glume usually hairy, 
truncate, or shortly-toothed, the awn about the middle. 
Panicle spreading ee ie eee =: ae ... 2: D.. Forstert. 
Spikelets about 3 lines. Flowering glume glabrous, with two 
long points, the awn almost basal. Panicle spreading ... 4. D. Billardier?. 
Spikelets about 14 lines. Flowering glume hairy, with two 
long points, theawn almost basal. Panicle narrow ... 5. D. plebeia. 
Panicle dense and spikelike or shortly branched. Rhachis of the 
spikelet produced into a glabrous or minute bristle or not 
continued beyond the flower. 
Spikelets 2 to 23 lines long. Awn almost basal. Bristles of 
the rhachis conspicuous ee ape me sie ... 6. D. montana. 
Spikelets 14 to 2 Jines. Awn almost basal. Bristle of the 
rhachis minute or none 2 $2 oe ae .. 7. D. quadriseta. 
Flowering glume nearly or quite as long as the outer ones, membranous, 
often minutely scabrous or pubescent. 
Panicle very loose and long. Awn dorsal about the middle of the 
flowering glume but very deciduous... is ae .. ll. D. frigida 
