522 



POACE^. 



Mexico, Parry tf- Palmer 935, Schaffner 1035, Pringle 2051^ 

 3243. 



There is some doubt uboiit tlie correct identification of this 

 grass. 



Fig. 107. — Briza fotundata. Spikelet, dissected. (Scribner.) 



122. (251). Demazeria Dum. Comm. Bot. 2G (1822). Desma- 

 zeria Dnm. Obs. Gram. Belg. 46 (1823). Brizopijruin Jink, Hort. 

 Berol. 1:159 (1827). 



Spikelets many-flowered, comjiressed, sessile or some of the 

 lower j^edicellate, rachilla articulate between the flowers. Glumes 

 keeled, coriaceous, obtuse or mucronate-acute, awnless, the empty 

 ones persistent, 3-5-7-nerved, shorter than the floral glumes; floral 

 glumes 7-nerved; palea rigid, about the length of its glume, 2- 

 koeled near the margins. Stamens 3. Styles short, distinct, stig- 

 mas feathery. Grain oblong, slightly obcompressed, concave in 

 front, enclosed, but not adherent to glume and palea. 



Annuals or perennials with narrow involute leaf-blades. Spike- 

 lets conspicuously distichous on two sides of a 3-sided rachis. 



There are about four species known, one of them in the vicinity 

 of the Mediterranean, the others in South Africa. Nearly allied, 

 to iJisllrlills. 



