42 



p. fendleriana Steiul. 



Colora.lo: Little Beaver, Larimer County, 9,100 feet; Beaver Creek Canyon, altitude 

 10,500 feet; soutli fork Cache la Poudre, Larimer County, altitude 8,500 feet. 



P. flava L. , . 1 



Colorado : Fort Collins, altitude 4,978 feet, low grounds near river; Greeley, altitude 



4,779 feet, low grounds. 



P. lucida Vasey. 



Colorado : Colden, Clear Creek Canyon, altitude 7,500 feet. 



P. lettermani Vasey. 



Colorado : Pikes Peak, altitude 14,1-17 feet ; timber line, altitude 11,700 to 13,600 feet, 

 common and conspicuous among other grasses. 



P. iiemoralis L. 



Colorado: Golden, Clear Creek Canyon; Mount Zion, altitude 6,500 to 7,500 feet; 

 North Cheyenne Canyon, near Colorado Springs; mountain trail, Pikes Peak, 

 altitude 11,000 feet; Fort Collins, altitude 4,950 feet, irrigated flats; in gulch 

 west of Fort Collins, altitude 5,500 feet; ahove Beaver Creek, Larimer County, 

 altitude 9,000 to 10,000 feet; Happy Hollow, Larimer County, altitude 7,900 

 feet; Rists Canyon, altitude 6,665 feet, common in the mountains in moist 

 places. 



P. pratensis L. 



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



Nebraska: Hastings; McCook, altitude 2,517 feet, in moist places. 



Colorado : Colorado Springs, altitude 5,978 to 6,000 feet; Fort Collins, irrigated fields, 

 altitude 4,978 feet; Bosworths Ranch, Larimer County, altitude 7,500 feet; 

 Poverty Flats, Larimer County, altitude 7,800 feet, open, dry flats, grass much 

 reduced in size ; Happy Hollow, Larimer County, altitude 7,900 feet. 



P. lupestris Vasey. 



Colorado: Mountain trail, Pikes Peak, altitude 11,500 feet; above timber lino, alti- 

 tude 12,500 feet ; above Beaver Creek, Larimer County, altitude 9,()00 to 10,000 

 feet, in swamps. 



P. tracyi Vasey. 



Colorado: Fort Collins, gulch west of Pennock, altitude 5,500 feet, in lower places. 



P. -wheeleri Vasey. 



Colorado: Beaver Creek, Larimer County, altitude 9,100 feet. 



Puccinellia airoides (Nutt.) Wats. & Coult. 



Colorado: Fort Collins, altitude 4,950 feet, near river; Greeley, altitude 4,770 feet, 



low grounds. 

 Panicularia nervata (Willd.) Kuntze. 

 Colorado : North Cheyenne Canyon, near Colorado Springs, altitude 8,000 feet, edges 



of brooks. 



Festuca arizonica Vasey. 



Colorado: Beaver Creek, Larimer County, altitude 9,100 to 9,500 feet, dry open 

 places; Rists Canyon, altitude 6,500 feet, a stout harsh grass. 



F. brevifolia R. Br. 



C..lora<lo: Beaver Creek, Larimer County, altitude 9,800 feet, dry sterile soil. 



F. kingii (S. Wats.) Scribn. 



Colorado: Little South Cache la Poudre, Larimer County, altitude 8,700 feet; 

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



F. ovina L. 



Colorado: Mountain trail, Pikes Peak, altitude 11,000 feet (a form of) ; Beaver Creek, 

 Larimer County, altitude 9,000 feet, dry .soil; Happy Hollow, Larimer County, 

 altitude 7,900 feet; Poverty Flats, Larimer County, altitude 8,020 feet. 



