223] FLORA OF BOULDER, COLORADO 75 



145. B. brizaefonnis F. & M. Quake-grass brome. 



The commonest ruderal grass about Boulder, and fast 

 spreading throughout the plains district, 5100-6000 ft. 

 (Daniels, 257). 



Europe and Asia, thence to the United States. 



146. B. secalinus L. Common chess, or cheat. 



In fields and waste places, 5100-6000 ft. (Daniels, 388). 

 Europe and Asia, thence to all temperate lands. 



147. B. hordeaceus L. [B. mollis L.] . Soft chess. 



Along the railroad between Boulder and Marshall, 5400 

 ft. (Daniels, 524). 

 Europe, thence to the United States. 



148. B. lanatipes (Shear) Rydb. [B. Porteri lanatipes 

 Shear]. Lanate brome. 



Common on the mesas, foothills, and mountain slopes, 

 less frequent in the plains, 5100-gooo ft. (Daniels, 346). Also 

 at Lafayette (Rydberg). 



Colorado. 



149. B. Richardsonii Link. Richardson's brome. 

 Common on the mesas, foothills, and mountains, 6000- 



IIOOO ft. (Daniels, 454). 



Saskatchewan to British Columbia; Colorado to Arizo- 

 na and Oregon. 



150. B. Pumpellianus Scribn. Pumpellt's brome. 

 Frequent throughout, 5100-10000 ft. (Daniels, 382). 

 Saskatchewan to Alaska and New Mexico. 



151. B. tectorum L. Thatch cheat. 



Waste places about Boulder, 5 100-6000 ft. (Daniels, 496). 

 Also at Longmont (Rydberg). 



Europe, thence to the United States. 



72. LOLIUM L. Darnel. 



152. L. Italicum A. Br. Italian rye grass. 



About irrigation ditches in the city of Boulder, 5300- 

 5600 ft. (Daniels, S39). Not in Rydberg's Flora. 

 Europe, thence to the United States. 



