76 UNIVERSITY OF MISSOURI STUDIES [224 



73. AGROPYRON Gaertn. Wheat grass. 



153. A. Scribneri Vasey. Scribner's wheat grass. 

 Long's Peak (Holm). 



Montana to Colorado and Arizona. 



iSZV^- A. spicatum inerme (Scribn. & Sm.) Heller [A, Vaseyi 

 S. & S.]. Vasey's wheat grass. 



Frequent on the mesas and foothills, 5700-7000 ft. 

 (Daniels, 171). 



Montana to Oregon; Colorado to Utah. 



154. A. Arizonicum S. & S. Arizona wheat grass. 

 Mountains between Sunshine and Ward, 8000-11000 ft. 



(Rydberg). 



Colorado to Arizona and Mexico. 



155. A. Richardsonii (Trin.) Schrad. [A. unilaterale Cas- 

 sid}^]. Richardson's wheat grass. 



Mountain meadows, rather local, 7000 (Bear Canon) -loooo 

 ft. (Daniels, 830). 



Minnesota to British Columbia; Iowa to Colorado. 



156. A. andinum (S. & S.) Rydb. [A. violaccum andinum 

 S. & S.]. Mountain wheat grass. 



Mountainsides at Eldora 8600-9000 ft. (Daniels, 640). 

 Montana to Colorado. 



157. A. violaceum (Hornem.) Vasey. Violet wheat grass. 

 Common on the foothills and mountains, 6300 (GreenMt.) 



— 12000 ft. (Daniels, 362). 



Greenland to Alaska; New Hampshire to Utah. 



158. A. tenerum Vasey. Slender wheat grass. 

 Common on the plains, foothills, and lower mountain 



slopes, 5100-7500 ft. (Daniels, 395). 



Labrador to Alaska; New Hampshire to Colorado. 



159. A. pseudorepens S. & S. False quack grass. 

 Common on the plains and in mountain meadows, 5100- 



1 0000 ft. (Daniels, 511). 

 Iowa to Alberta; New Mexico to Utah. 



