4°5] FLORA OF BOULDER, COLORADO 257 



1205. C. angustata Rydb. Narrow-leaved hawk's-beard. 

 North slope of Flagstaff Hill along Boulder Canon, 6000 ft. 



(Daniels, 147). 

 Montana to Washington ; Colorado to Oregon. 



1206. C. occidentalis Nutt. Western hawk's-beard. 

 Boulder (Rydberg). 



Montana to Washington ; Colorado to California. 



1207. C. alpicola (Rydb.) A. Nels. Alpine hawk's-beard 

 Long's Peak, 11000 ft., the type locality (Nelson). 

 Rocky Mountains. 



482. HIERACITJM L. Hawkweed. 



1208. H. gracile Hook. Slender hawkweed. 



At and above timberline under dwarfed spruce, Arapahoe 

 Peak, Colo., 10000-12000 ft. (Daniels, 871). Also at Caribou 

 (Rydberg). 



Montana and Alaska to Colorado and California. 



1209. H. albiflorum Hook. White-flowered hawkweed. 

 Wooded banks. Bear Canon, and other deep canons in the 



foothills, 6000-8000 ft. (Daniels, 750). Also mountains be- 

 tween Sunshine and Ward (Rydberg). 

 Yukon to Colorado and California. 



1210. H. Fendleri Schultz Bip. Fendler's hawkweed. 

 Under pines, east slope of Flagstaff Hill, 6000-7000 ft. (Dan- 

 iels, 215). 



South Dakota to New Mexico and Arizona. 



482i/ 2 . NOTHOCALAIS Greene. 

 1210J/2. N. cuspidata (Pursh) Greene [Troximon cuspidatum 

 Pursh], Cuspidate Troximon. 

 St. Vrain Canon (Coulter in Wabash College Herb.). 

 Illinois to South Dakota ; Missouri to Colorado. 



483. AGOSERIS Raf. 



121 1. A. agrestis Osterh. Field agoseris. 



Common on the foothills and mountains, 6000-9000 ft. (Dan- 

 iels, 1035). 

 Colorado 



