272 THE TASMANIAN PLOBA. 



40. GLYCERIA. 



Spikelets several-flowered. Glumes rounded at the back, many -nerved, apex 

 obtuse, scarious. Inflorescence a linear erect panicle. 



Widely distributed in both Hemispheres. Differing from Poa only m habit 

 and in spikelet being many-flowered and linear. 



Panicle loose. Spikelets H i^cli lo^g 1- G- fl'>^itans. 



Panicle rather dense. Spikelets 3-4 lines 2. O. strict a. 



1 G. FLTJITANS, -R. .Bn Tall and creeping. Leaves flat, narrow, about 2 feet 

 long. Stems 2-3 feet. Panicle linear, loose, 8-12 inches. Spikelets linear, 

 about I inch long. Poa fluitans. Scop. , . , ,. , " ,, . 



Common on fresh water courses ; also temperate Australia, and generally m 

 temperate localities of both Hemispheres. 



2 G. STEiCTA, H. Tufted, erect, and rather rigid. Leaves filiform, 8-12 

 inches. Stems about 1 foot. Panicle narrow, about 3 inches. Spikelets linear, 

 3-4 lines long. Poa syrtica, P. v. M. , xr- .. ■ c, ^. 



Salt ma.rshes, Risdon, Launceston, &c. ; Bass btraits ; also Victoria, bouth 

 Australia, and West Australia, and in New Zealand. 



41. BRIZA. 

 Spikelets many-flowered, broad, slightly flattened. Glumes broad, very obtuse, 

 unawned. Spikelets pendulous, in loose panicles. 



A small genus, common to temperate parts of both Hemispheres. 



Spikelets numerous, about 2 lines long 1. B. minor. 



Spikelets few, 5-6 lines long 2. B. maxima. 



1. B. MiNOE, Linn. Erect, 6 inches to 1 foot. Leaves rather short, broad,, 

 flat. Panicle 2-4 inches, spreading. Spikelets very numerous, about 2 lines 

 long. Glumes green, with a broad white margin. 



Very common. Introduced. European, but now a common weed of cultivation 

 in all temperate climates. 



2. B. MAXIMA, Linn. Erect, 6-18 inches. Leaves short, rather narrow, acute^ 

 Panicle of, few pendulous spikelets. Spikelets nearly | inch, very obtuse, empty 

 glumes dark, flowering glumes becoming scarious. 



Cascades, Bellerive, and doubtless in many localities in settled districts.. 

 Introduced. European. 



42. BROMTJS. 



Spikelet many-flowered, little or not at all flattened. Outer glumes acute, but 

 unawned. Flowering glumes convex, continuous at the apex into a long slender 

 awn the sides developing into 2 slender lobes at its base. Inflorescence a loose 

 or rather dense erect panicle. 



Spikelets swollen, under 1 inch ... ... ... 1. i5. mollis. 



Spikelets narrow, elongated ... ... .. ... 2. B. sterilis. 



1. B. MOLLIS, Linn. Erect, usually tufted, mostly 1-2 feet. Leaves flat, rather 

 naiTOw, shorter than the stems. Panicle erect, rather dense, 2-3 inches. 

 Spikelets softly downy, rather swollen, |-f inch long. Flowering glume very 

 obtuse. Awn slender, as long as the glume. 



Very common. Introduced. European. 



2. B. STERILIS, Linn. Erect, 1-2 feet. Leaves as long at the stem, flat, not 

 very narrow. Panicle usually long, the numerous spikelets spreading, sometimes 

 drooping. Spikelets 1-3 inches long, narrow. Flowering glume narrow, the 

 awn usually much exceeding the glume. 



Very common. Introduced. European. 



