118 



Where figured. — La Billardiere, as Agrostis quadrifida ; Agricultural 

 Gazette. 



Botanical description (B. Fl., vii, 572). — An erect annual, from under 

 1 foot to above 2 feet high. 



Leaves narrow, hairy pubescent or rarely glabrous. 



Panicle narrow, erect or somewhat nodding, 2 to 6 inches long. 



Spikelets numerous, nearly sessile on the branches. 



Outer glumes narrow, varying from 3 to 6 lines long, almost hyaline, with a 



prominent shortly ciliate keel often produced into a short point. 

 Flowering glume on a very short hairy stipes, the central awn terete, rigid, £ to 1 



inch long, the lateral lobes, two on each side, much shorter, erect, slightly 



flattened, and one-nerved. 



Value as a fodder. — Unknown. 



Habitat and range. — Found in all the Colonies except Western 

 Australia and Queensland. In New South Wales found in the 

 extreme south of the Colony. 



53. DICHELACHNE. 



Spikelets one-flowered, numerous in a narrow usually dense panicle, 

 the rhachis of the spikelet articulate immediately above the two outer 

 glumes and not continued beyond the flower. 



Glumes three, narrow, the two outer ones persistent, membranous, 

 acute, keeled. Flowering glume raised on a short hairy stipes (rhachis 

 of the spikelet), membranous at the time of flowering, hyaline and 

 entire or two-lobed at the end, with a fine scarcely twisted dorsal awn 

 a little below the end, slightly hardened round the fruit. 



Palea two-nerved. 



Stamens three or fewer ; anthers glabrous. 



Styles distinct. 



Grain enclosed in the glume and palea, free from them. 



Panicle very dense, the awns above 1 inch long, very numerous and 



concealing the spikelets ... ... ... ... ... ... 1. D. crinita. 



Panicle rather loose, the awns 6 to 8 lines long 2. D. sciurea. 



1. Dichelachne crinita, Hook., f. 



Botanical name. — Dichelachne — Greek, dis, double ; cheilos, a lip ; 

 achne, chaff (glumes), the flowering glumes being two-lobed; crinita, 

 Latin, having much or long hair, in allusion to the long hair-like awns. 



Synonym. — Stipa Dichelachne, Steud. in F.v.M. Census. 



Vernacular name. — "Long-hair Plume-grass." 



Where figured. — Labillardiere, as Anthoxanthum crinitum ; Bailey, 

 Buchanan, Agricultural Gazette. 



Botanical description (B. FL, vii, 574). — 



Stems 2 to 3 feet high. 



Leaves flat, glabrous or softly pubescent, the upper ones rather long with long 



sheaths. 

 Panicle very dense and spikelike, 4 to 8 inches long, the spikelets imbricate on the 



short erect branches, but concealed by the numerous long hair-like awns. 

 Outer glumes very narrow, hyaline with a slightly scabrous keel, nearly equal, about 



2^ lines long. 

 Flowering glumes shorter, glabrous, the hyaline tip entire but readily splitting. 

 Awn dorsal, very slender, bent but scarcely twisted, above 1 inch long. 



