Fig. 24.— "Wild rice, Zlzania aqnatica. 

 (After Britton and Brown, 111. Fl. North- 

 ern U. S.) 



Fig. 25.— Minnesota Muhlenbergia 

 (Muhlenbergia ambigna). (After Britton 

 and Brown, 111. Fl. Northern U. S.) 



FIG. ■iS.-Timothy grass {Phleum pratense). (After Fig. 27. -Broom grass^^ttdropoyo^.Wr^m 

 jribner Bull. No 7, Div. of Agrost., IT. S. Uepi. of (After Scribner, Bull. No. >, Div. of Agiost., U. 



S. Dept. of Agric.) 



F 

 Scr 

 Agric.) 



