43 



F. octoflora Walt. 



Iowa: Sioux City, altitude 1,122 feet. 



Nebraska: Crete, altitude 1,364 feet; McCook, altitude 2,517 feet. 



Colorado: Golden, altitude 5,691 feet; Monut Zion, near Golden, altitude 7,500 feet; 



Denver, altitude 5,294 feet, dry soil; common at all the above points. 

 Bromus breviaristatus Bnckl. 

 Colorado: Fort Collins; gulch west of Penuock, Larimer County, altitude 5,500 



feet, in moist soil. 



B. ciliatus L. 



Iowa: 8ioux City, altitude 1,122 feet. 



Colorado: Beaver Creek, Larimer County, altitude 9,100 to 9,800 feet, in rather dry 

 woods. 



B. ciliatus purgans A. Gray. 



Colorado: Clear Creek Canyon, near Golden, altitude 7,000 feet, in spruce woods. 

 B. inerniis Leyss. 



Colorado: Fort Collins, altitude 4,974 feet, escaped from cultivation, College farm. 

 B. kalmii A. Grjiy. 



Colorado: Stove Prairie, Larimer County, altitude 7,800 feet, dry open woods. 

 B. pumpellianiis Scribn. 



Colorado: Beaver Creek, Larimer County, altitude 9, .500 feet. 

 B. tectorum L. 



Colorado: Fort Collins, altitude 4,974 feet, escaped from cultivation, common station 

 grounds, College farm. 



B. unioloides II BK. 



Colorado: Fort Collins, altitude 4,974 feet, escaped from cultivation, College farm. 



HORDEiE. 



Agropyron dasystachyuni subvillcsum Scribn. and Smith. 



Colorado: Bosworth ranch, Larimer County, altitude 7, .500 feet, low meadows. 



A. diver gens Nees. 



Colorado: Golden, altitude 5,691 feet, open low places; Clear Creek Canyon, alti- 

 tude 6,500 to 7,000 feet; Beaver Creek, Larimer County, altitude 9,500 feet, 

 swamp; Long Gulch, altitude 7,800 feet, low places. 



A. divergens teniiispiciini Scribn. and Smith. 



Colorado: Happy Hollow, altitude 7,500 feet, low grounds. 



A. pseudorepens Scribn. and Smith. 



Colorado: Bosworth ranch, Larimer County, altitude 7,200 feet, in open woods. 



A. repens (L.) lieauv. 



Iowa: Carroll, altitude 1,240 feet; Sioux City, altitude 1,122 feet. 



Nebraska: McCook, altitude 2,517 feet, introduced. 



A. richardsoni Schrad. 



Colorado: Stove Prairie, Larimer County, altitude 8,000 feet, in open, dry soil. 



A. scribneri ^'^asey. 



Colorado: Beaver Creek, Larimer County, at timber line, altitude 11,000 feet. 



A. spicatum (Pursh) Scribn. and Smith. 



Iowa: Sioux City, altitude 1,122 feet, loess soil, common. 



Nebraska: Lincoln, altitude 1,1.59 feet; Crete, altitude 1.364 feet; Oxford, altitude 



2,085 feet; McCook, altitude 2,517 feet; abundant, prairies. 

 Colorado: Fort Morgan, altitude 4,500 feet. 

 A. teneriim VaseJ^ 

 Colorado: Colorado Springs, altitude 5,978 feet; Fort Collins, altitude 4,970 feet, 



along irrigation ditches; Greeley, altitude 4,779 feet, along irrigation ditches. 



