324 MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Figure 443. — A, Calamagrostis canadensis. Plant, X Yi\ glumes and floret, X 10. (Chase 5077, Mont.) B, Var. 

 scabra, X 10. (Pringle, N. H.) C, Var. macouniana, X 10. (Pammel 891, Minn.) 



