2g4 THE TASMANIAN FLORA. 



3. A. VENUSTA, Trin. Exactly similar in habit and detail to the small forms 

 of A. s'cahra, but the flowering glume bears a fine, twistpd, dorsal awn. 



Very common, chiefly in shaded places ; also in Victoria, West Australia, South 

 Australia, and New South Wales. 



20. DEYEUXIA. 



Spikelets small, 1-flowered. Glumes 3; 2 outer ones acute, iinawned, and 

 persistent. Flowering glume acute or erose, with or without a dorsal awn. 

 Pale well developed, and the rhachis usually developed beyond it in the form of 

 a hairy bristle, which sometimes bears a rudimentary or, perhaps, perfect flower, 

 in some instances even a third flower is developed. (D. montana.) 



The genus appears to be a continuation of Agrostis in the direction of Cala- 

 magrostis. 



Flowering glume unawned or the awn very small. 

 Flowering glume about as long as the outer glumes. 



Panicle very spreading. Awn none ... ... 1. D. tequata. 



Panicle linear, rarely spreading. Awn minute, 



attached near the top ... ... ... ... 6. D. scahra. 



Flowering glume much exceeding the outer glumes. 



Awn small, terminal ... .. .•• ... 7. D. gunniana. 



Flowering glume with a long, fine, dorsal, twisted awn. 

 Panicle spreading, with long capillary branches. 



Flowering glume villous ... ... ... ... 2. D. forsteri. 



Flowering glume glabrous ... ... ... 3. D. billardieri. 



Panicle linear, densely cylindrical ; if spreading, 

 branches short. 

 Panicle linear ... ... ... ... ... 5. D. montana. 



Panicle dense or shortly spreading ... ... 4<. D. quadrineta. 



1. D. j;qdata, JBenth. Tufted. Leaves narrow, flaccid, flat. Stems slenderi 

 1-2 feet high. Panicle about 6 inches long, with long, spreading, capillary 

 branches. Outer glumes acute, about f line long. Flowering glume rather 

 shorter, polished, unawned. Pale neai'ly as long as the glume. Bristle generally 

 distinct. Agrostis eequata, Nees. 



Circular Head, Trial Harbour. Probably widely distributed, but overlooked. 



2. D. FOKSTBBi, Kunth. Variable in habit, usually tufted. Leaves flat, and 

 about 2 lines broad in the largest foi'ms, filiform in the smallest. Stem slender, 

 6 inches to 2 feet high. Panicle with spreading capillary branches, a few inches 

 to 1 foot long. Outer glumes acute, 1-2 lines long. Flowering glume much 

 shorter, haiiy, bearing a fine, twisted, dorsal awn. Pale nearly ns long. Bristle 

 present. Agmstis forsteri, R. et S. ; A. cemula, R. Br. ; A. solandri, P. v. M. 



Very common ; also throughout Australia and New Zealand. 



3. D. BILLARDIERI, Kunth. A very similar plant to the last, but of more 

 robust habit, though not tall. Leaves flat. Stems from a few inches to 1 foot 

 high, with a large leaf at the base of the panicle. Panicle large and spreading. 

 Outer glumes very acute, 2-3 lines long. Flowering glume shorter, glabrous, 

 terminating with 2 filiform points, and bearing a fine, twisted, dorsal awn. Pale 

 rather short. Bristle very conspicuous. Agrostis billardieri, R. Br.; A. solandri 

 (partly), F. v. M. 



Common on coasts. South-Eastem Australia to New Zealand 



4. D. QDADRiSETA, Bentli. A most variable grass. Leaves narrow and convolute 

 in the small forms, flat and 3 lines wide in the large ones. Stems slender to 

 robust, 9 inches to 3 feet high, often decumbent at the base. Panicle from loose 

 and interi'upted and spreading when in flower to dense and cylindrical, 1-4 

 inches long. Outer glumes very acute, l|-3 lines long. Flowering glume about 



