215] FLORA OF BOULDER, COLORADO 6/ 



MANITOBA to ASSINIBOIA; ILLINOIS to TEXAS and NEW 

 MEXICO. 



56. BOUTELOTTA Lag. GRAMA-GRASS. MESQUIT-GRASS. 



95. B. hirsuta Lag. HAIRY MESQUIT. 



Dry plains and mesas, less common than the next, 5100- 

 6000 ft. (Daniels, 956). Also at Meadow Park, 6500 ft. 

 (Rydberg). 



ILLINOIS to SOUTH DAKOTA; TEXAS to ARIZONA. 



96. B. oligostachya (Nutt.) Torr. COMMON GRAMA-GRASS, 



Or MESQUIT-GRASS. 



Common on the plains and mesas; occasional on the foot- 

 hills, 5100-8000 ft. (Daniels, 220). One of the most charac- 

 teristic grasses of the Great Plains. 



WISCONSIN to ASSINIBOIA; MISSISSIPPI to ARIZONA and 

 MEXICO. 



57. ATHEROPOGON Muhl. TALL MESQUIT. 



97. A. curtipendulus (Michx.) Fourn [Bouteloua racemosa 

 Lag.]. PRAIRIE GRAMA-GRASS. 



Frequent on the plains, mesas and foothills, 5100-7000 ft. 

 (Daniels, 299). Meadow Park (Rydberg). 



ONTARIO and MICHIGAN to MANITOBA; NEW JERSEY to TEX- 

 AS, ARIZONA, and MEXICO. 



58. BITLBIUS Raf. BUFFALO GRASS. 



98. B. dactyloides (Nutt.) Raf. [Buchloe dactyloides (Nutt.) 

 Eng.]. COMMON BUFFALO GRASS. 



Abundant on the plains and mesas, 5100-6000 ft. (Daniels, 



MINNESOTA to NORTH DAKOTA ; ARKANSAS to NEW MEXICO 

 and MEXICO. 



59. PHRAGMITES Trin. REED. 

 99. P. Phragmites (L.) Karst. [P. communis Trin.]. COM- 



MON REED. 



About a spring at foot of Flagstaff Hill, only three or four 

 plants, 6000 ft. (Daniels, 834). 



EUROPE: ASIA: temperate NORTH AMERICA. 



