20S GRASSES OF IOWA. 



DISTRIBUTION. 



Iowa. Estherville, 1060 (Cratty) ; Plymouth County, Leiberg, 

 Lake Okoboji (Hitchcock) ; Ames (cult., Hodson) ; South Dakota, op- 

 posite Hawarden (Pammel) ; Estherville (Shimek) ; Rock Rapids and 

 Lyon County, northwest corner state (Shimek) ; Millford (Shimek). 



North America. Prairies of southwestern Minnesota, northwest- 

 ern Iowa, south to Arkansas (Ft. Smith, Rolfs) ; Texas (Nealley), 

 New Mexico (Vasey) ; through Kansas, Nebraska (Hastings, Pammel; 

 McCook, 241, 381; Broken Bow, North Platte, Crete, 210; Oxford, 

 239; Alma, Pammel; Grand Island, Wakefield; Sioux County, Miller), 

 Colorado (Ft. Collins, Crandall ; Golden, eastern Colorado, Pammel), 

 Wyoming (New Castle, Pammel), and west to southern California and 

 Mexico (Parry and Palmer 944). 



3. BOUTELOUA HIRSUTA. 



Boutelona hirsuta Lag. var. Cienc. y. Lit. Art. 2: 141. 1805. 

 Beal. Am. Grasses. 2: 417. 1896. Watson and Coulter. Gray. 

 Man. Bot. 656. 1890.(6 ed. ) Nash in Britton and Brown. 111. Fl. 1: 180. 

 /. 411. 1896. Scribner. Bull. U. S. Dept. Agrl. Div. Agros. 7: 211. f. 205. 

 1900. (3 ed.) 



Chondrosium foenum Torr. Marcy. Rept. 157. 1848. 



DESCRIPTION. 



Hairy Mesquite Grass. A caespitose perennial, 6 to 16 inches 

 (1.7-4 dm.) high, with erect or ascending culms, flat leaves, and one to 

 three, mere or less spreading, densely flowered spikes, 1 to 2 inches (2-4 

 cm.) long. Leaves usually short, 1 to 4 inches (2-10 cm.) long. Spike- 

 lets numerous, 2\ to 3 lines (5-6 mm.) long; empty glumes un- 

 equal, the first one smooth, 1 line (2 mm.) long, the second about 

 2^ lines (5 mm.) long, with a row of dark or black glands on 

 either side of the mid-nerve, each one emitting a long hn'r; flowering 

 glume nearly smooth, three-lobed, each lobe terminating in a short awn ; 

 rudiment on a short pedicel, consisting of three awns and three imperfect 

 glumes. July to September. Dry prairies and sandy plains. Hairy 

 mesquite grass is abundant in some places on Muscatine Island, and in 

 sandy soils along the Missouri. In central and northern Iowa it occurs 

 on gravelly knolls and moraines. It is an excellent grass, but it is not 

 productive. (See fig. 146, page 207.) 



DISTRIBUTION. 



Iowa. Ames(Beardslee, Hitchcock, Bessey, Anderson, 116 Ball) ; 

 Clinton, Webster City (Pammel) ; Muscatine (Reppert and Pammel) ; 

 Lyon County, Hamburg (Shimek). 



