136 GRASSES OF IOWA. 



Clinton, South Dakota opposite Havvarden, 274 Webster City, Car- 

 narvon, Alton, Sioux Rapids, Dakota City, Hawarden (Pammel) ; 

 Sioux City (Miss Wakefield); Ames (Kaufman, Hitchcock); West 

 Union, 248 (Whitmore) ; Ames, 113 (Ball); Lyon County, 45 

 (Shimek); Keystone (Koch); Dallas Center, 817 (Rhinehart) ; 

 Tabor (Baldwin) ; Muscatine (Reppert) ; Ledyard, 760 (Pammel and 

 Cratty) ; Tabor, 778 (Baldwin); Webster City, 2217 (Pammel and 

 Sokol) ; Armstrong (Cratty); Council Bluffs (Miss Cavanagh and 

 Dilne) ; Rock Rapids (Shimek); Iowa City (Hitchcock and Mac- 

 bride) ; Hamilton to Hancock County (Preston) ; Spirit Lake, Lyon 

 County (Shimek) ; Plymouth County (Brown) ; High Bridge (Lum- 

 mis) ; Woodbury County (Brown) ; Worth County (Pammel). 



North America. From New Jersey to Missouri (St. Louis, Eg- 

 gert, Pammel); Ohio (Columbus, Sullivant) ; Wisconsin (La Crosse, 

 Pammel, C. M. King) ; Minnesota (Sandy Lake, Sandberg) ; Iowa, 

 Nebraska (Crete, Pammel; Lincoln, Pammel); Dakota (Vasey) ; 

 mountains of Colorado (northern Colorado, Soldier's Canon, Crandall; 

 Ft. Collins, Pammel) ; New Mexico (Parry) ; Utah (West Duchesne 

 River, 8500 ft., Pammel and Stanton ; East Duchesne River, Pammel 

 and Stanton), and Arizona; north to British Columbia; eastward to 

 Newfoundland. 



4. MUHLENBERGIA DIFFUSA. 



Muhlenbergia diffusa Schreb. Beschr. Gras. 2: 143. pi. 51. 1772. 79. 

 Watson and Coulter. Gray. Man. Bot. 644. 1890. 16th ed.) Scribner, 

 Grasses of Tenn. Bull. Univ. Tenn. Agrl. Exp. Sta. 7: 67. /. 80. 1894. 

 Nash in Britton and Brown. 111. Fl. 1: 144. /. 327. 1896. Scribner. 

 Bull. U. S. Dept. Agrl. Div. Agros. 7: 105. / 99. 1900. (3ded.) Vasey 

 Contr. U. S. Nat. Herb. 3: 68. 



Muhlenbergia Schreberi Gmel . Beal. Grasses of N. A. 2: 245. 1896. 



