04 



GRASSES OF IOWA. 



General. Great Britain, Germany, Scandinavia to northern Africa, 

 western Siberia, naturalized generally in grain growing countries. 



15. BROMUS RACEMOSUS VAR. COMMUTATUS 



Bromus racemosus var. commutatus L. Sp. PI. 114. 1762. (2 ed.) 

 Watson and Coulter. Gray. Man. Bot. 670. 1890. (6 ed.) Scribner. Grasses 

 of Tenn. Bull. Univ. Tenn. Agrl. Exp. Sta. 7: 120. /. 172. 1894. Beal. 

 GrassesN. A. 2: 625. 1896. Nash in Britton and Brown. 111. Fl. 1:222. 

 /. 515. 1896. 



Bromus asper Murr. Prod. Stirp. Goett. 42. 1770. 



DESCRIPTION. 



Upright Chess. An annual, i to 3 feet (2-7 dm.) high, with a 

 ly erect, sparingly branched panicle. Branches of the panicle slightly 



FlG. tH. Bromus racemosuH var. commutatus 

 ;i, spikelet (Charlotte M. Kinu' 1 



Fio. 215. Bromus arvensis—&, empty 

 glumes; 1), part of spikelet, with lower florets? 

 oi_en to s-how ralea. (Div. Agros. U. S. Dept. 

 Agrl.) 



