GRASSES OF BRITAIN. 183 



€ially on the upper half. I think it probable, therefore, that two spe- 

 cies may have been confounded under one name, 



Phleum Boehmeri is distinguished from Phleum pratense in the 

 glumes not being awued, but pointed The kteh less hain", the hairs 

 confined to the upper half Liner margins of the glumes terminating 

 obliquely. Outer palea entire at the summit : — whereas in Phleum 

 pratense the awns are very conspicuous. The keels fringed with hairs 

 the whole length, or nearly so, and the inner margins terminate 

 abruptly. Outer palea jagged at the summit, with a minute awn or 

 point 



Phleum Boehmeri is distinguished from Phleum 3Iichelii in the 

 glumes being more linear, the inner margins terminating more 

 abruptly. Upper half of the keels bristly ; — whereas in Phleum 3Ii- 

 chelii the glumes are acutely lanceolate, and the keels are fringed their 

 whole length with soft, delicate hairs. 



Phleum Boehmeri is distinguished from Phleum arenarium in the 

 inner margins of the glumes not being fringed. The Jloret one- 

 fourth shorter than the gliunes, and entire at the summit ; — whereas 

 in Phleum arenarium the inner margins of the glumes are distinctly 

 fringed with minute hairs. The floret two-thirds shorter than the 

 glumes, and jagged at the summit. 



Phleum Boehmeri is distinguished from Phleum asperum in the 

 glumes approaching to linear : the points divaricating. Keels fringed 

 with a few bristle-like hairs, especially on the upper half. Ligule 

 rather short and obtuse : — whereas in Phleum asperum the glumes are 

 wedge-shaped ; the points not divaricating. Keels rough, but not 

 fringed. Ligule long and pointed- 



This is a rare British grass, and grows on dry, sandy, and chalky 

 fields principally in Norfolk and Cambridgeshire, It has not been 

 found either in Ireland or Scotland. It is a native of Norway, Swe- 

 den, France, Germany, Switzerland, Italy, and Russia. It possesses 

 no agricultural merits. 



Flowers in July, and ripens its seed in the middle of August. 



