227] FLORA OF BOULDER, COLORADO 79 



174. E. ambiguus Vasey & Scribn. Ambiguous lyme grass. 

 Common on the foothills and mountainsides, 5900-9000 ft. 



(Daniels, 158). 

 Colorado. 



175. E. strigosus Rydb. Strigose lyme grass. 



Common on the foothills and mountain ridges, 6000-8600 

 ft. (Daniels, 962). Boulder is the type locality. 

 Wyoming to Colorado. 



176. E. villiflorus Rydb. Villous lyme grass. 



Common on the foothills; occasional on the plains and 

 mesas, 5100-8000 ft. (Daniels, 963)^ Boulder is the type 

 locality. 



South Dakota and the Canadian Rockies to Colorado. 



Family 13. CYPERACEAE J. St. Hil. Galingale famUy. 



78. CYPER.TJS L. Galingale. 



177. C. inflexus Muhl. [C. aristatus Boeckl.]. Awned cy- 



PER GRASS. 



Scarce on the plains and foothills in moist sands, 5100- 

 6500 ft. (Daniels, 253). 



Vermont to British Columbia; Florida to California 

 and Mexico. 



178. C. BusMi Britt. Bush's cyper grass. 



In sandy soil at Meadow Park, 6500 ft. (Rydberg). 

 Wisconsin to Oregon; Kansas to Colorado. 



79. SCIRPUS L. Bulrush. 



179. S. Americanus Pers. [S. pungens Vahl.]. Three 

 square. 



In swales, along ditches and streams, and at the margins 

 of ponds and lakes, but apparently not following the streams 

 very far into the foothills, 5100-6500 ft. (Daniels, 668). 



North America : Chili : Europe. 



