THE TASMANIAN FLORA. 269' 



33. CYNOSURUS. 



Spikelets 2-5-flo'wered, in sessile clusters, along one side of a common rhachis ; 

 the outer spikelets of each cluster consisting of glumes only. Glumes awned or 

 very acute. 



A European genus. 



C. CBiSTATxrs, Linn. Erect, about 1 foot high. Leaves short, narrow, flat. 

 Spike 1-2 inches long; dense. Spikelets flat, about \\ line long. Grlume& 

 acute, or some bearing very short awns. 



Introduced. Very common. 



34. PHRAGMITES. 



Spikelets 3 or more flowered, in a much-branched plumose panicle, the rhachis 

 bearing long silky hairs between the flowers. Outer glume short, empty ; 

 second longer, empty ; third still longer, very narrow, with a long point and 

 enclosing a male flower ; above this three or four very long, slender, flowering 

 glumes distant along the rhachis. 



World-wide genus. 



P. COMMUNIS, Trin. Creeping and tufted in mud. Stems many feet high. 

 Leaves flat, rather broad. Panicle about 1 foot long. Spikelets very numerous,, 

 about |-f inch long, slender when in flower, widely open when in fruit. 



Common on river-banks, &c. Of world-wide distribution. 



36. DISTICHLIS. 

 Spikelets several-flowered, few, flattened, dicecious, in small terminal panicles. 

 Glumes acute. 



The genus contains but one species. 



D. MAEiTTMA, Rqfin. Tufted or creeping, about 6 inches high. Leaves short, 

 rigid, distichous. "Spikelets few, in a close panicle, about | inch long. Festuca 

 didichophylla. Hook. " El. Tas." 



Very common on coasts ; also South Australia, Victoria, New South Wales, 

 and extending to South America. 



36. KCELERIA. 



Spikelets 2 or more flowered, small, flat, numerous, in a dense cylindrical 

 panicle. Glumes acute or awned. 



A northern temperate genus. 



Spikelets nearly i inch long I. K. cristata. 



Spikelets barely 2 lines long 2. K. phleoides. 



1. K. CRISTATA, Pers. Perennial, about 1 foot high or rather more. Leaves 

 ciliate, short, flat^ and thin. Inflorescence about 2 inches long. Spikelets about 

 \ inch' long, and generally 4 or 5-flowered. Glumes acute. 



Macquarie Plains. Introduced. It also occurs in New South Wales and Victoria. 

 Very widely distributed, in the Northern Hemisphere. 



2 K PHLEOIDES, Pers. A small pubescent annual, 6 inches to 1 foot high. 

 Leaves 'flat thin. Inflorescence very dense, 1-2 inches long. Spikelets about s2 

 lines long and 5-7-flowered, the larger glumes with a short fine awn. 



George's Bay, Bass Strait. Introduced. It also occurs m New South Wales 

 and South Australia. A common northern plant. 



37. DACTYLIS. 



Spikelets several-flowered, flat, crowded in clusters on one side of peduncle, 

 the whole in a dense or loose one-sided inflorescence. . 



The genus contains but one species, of north temperate distribution. 



