GRASSES OF IOWA. 



231 



Fig. 161. Eragro fix Mexicana—a. spikelet;b, flowering glume; c, palet, d, seed. 

 (Charlotte M. King. I 



DISTRIBUTION. 



Iowa. Ames, escaped from cultivation, 30b (Pammel). 

 North America. Western Texas to southern California. 



5. ERAGROSTIS PURSHII. 



Eragrostis Purshii Schrad. Linnaea. 12: 451. 1838. Watson and 

 Coulter. Gray. Man. Bot. 661. 1890. (6th ed.) Scribner. Grasses of Tenn. 

 Bull. Univ. Tenn. Agr. Exp. Sta. 7: 97. f. 126. 1894. Nash in Britton 

 and Brown. 111. Fl. 1: 189. /. 431. 1896. Scribner. Bull. U. S. Dept. 

 Agr. Div. Agros. 7: 247. f. 241. (3d ed.) 



Eragrostis pilosa L. Beal. Grasses of N. A. 2: 487. 1896. 



Poa Caroliniana Spreng. Mant. Fl. Hal. 33. 1807. 



Eragrostis Caroliniana Scrib Mem. Torr. Bot. Club. 5: 49. 1895. 



