

GRASSES OF IOWA. 



289 



Fig. 200. Bromus purgana var. incanus— a, Fig. 201. Bromus purgans var. lalig/umis—a,, spike- 



spikelet. (Charlotte M. King ) let;b, flowering glume; c, palet. (Charlotte M. King ) 



DISTRIBUTION. 



Iowa. Fayette 1084 (Fink; see Shear, Bull. U. S. Dept. AgrL, 

 Div. Agros. 23:41); Sioux City (Wakefield) Greenfield (Stewart); 

 Mt. Pleasant (Mills) ; Ames (Rich and Gossard, Sirrine, Hitchcock). 



North America. Pennsylvania, Ohio, Iowa, South Dakota and 

 Texas. 



4. BROMUS PURGANS VAR. LATIGLUMIS. 



Bromus purgans var. latiglumis (Scribn.) Shear. Bull. U. S. Dept. 

 Agrl. Div. Apros. 23: 40. 1900. 



Bromus altissimui Pursh. Fl. Am. Sept. 2: 728. 1S14. 

 Bromus cili tus porteri Rydb. Contr. U.S.Nat. Herb. 3: 193. 1835. 

 19 



