78 UNIVERSITY OF MISSOURI STUDIES [226 



76. SITANION Raf. BRISTLE GRASS. 



167. S. longifolium J. G. Smith. LONG-LEAVED BRISTLE GRASS. 

 Common on the foothills and mountain slopes, 6000-9000 



ft. (Daniels, 363). 



NEBRASKA to NEVADA; TEXAS to ARIZONA. 



168. S. brevifolium J. G. Smith. SHORT-LEAVED BRISTLE 

 GRASS. 



Abundant on the plains, and frequent on open mountain 

 slopes, 5100-10000 ft. (Daniels, 202). Also on the mountains 

 between Sunshine and Ward (Rydberg). 



WYOMING to UTAH; COLORADO to ARIZONA. 



77. ELYMTTS L. LYME GRASS. 



169. E. Canadensis L. CANADIAN WILD RYE. 



Common along ditches and streams both in and out of 

 shade, 5100-7000 ft. (Daniels, 357). 



NOVA SCOTIA to WASHINGTON; GEORGIA to NEW MEXICO. 



170. E. robustus S. & S. STOUT WILD RYE. 



In swales along railroads and on stream-banks, 5100-6000 

 ft. (Daniels, 489). 



SOUTH DAKOTA to IDAHO; MISSOURI to COLORADO. 



171. E. brachystachys Scribn. & Ball. SLENDER WILD RYE. 

 Plains south of Boulder, 5400-5700 ft. (Daniels, 396). 

 MICHIGAN to SOUTH DAKOTA; TEXAS to UTAH and MEXICO. 



172. E. Macounii Vasey. MACOUN'S WILD RYE. 



On the plains and in meadows on the foot-hills, 5100-7000 

 ft. (Daniels, 417). 



MANITOBA and SASKATCHEWAN to ALBERTA; NEW MEXICO 

 to UTAH. 



173. E. condensatus Presl. SMOOTH LYME GRASS. 



Dry meadows throughout, 5100-10000 ft. (Daniels, 961). 

 ALBERTA to BRITISH COLUMBIA; NEW MEXICO to CALI- 

 FORNIA. 



