406 CICHORIACEAE. 



9. Crepis acuminata Nutt. On hillsides from Mont, and Wash, to Colo, 

 and Calif. Alt. 7000-8000 ft. Van Boxle's ranch, above Cimarron; Middle 

 Park; near Manitou; Deadman Canon; Mancos. 



10. Crepis intermedia A. Gray. On hillsides from Mont, and Wash, to 

 Colo, and Calif. Alt. about 7000 ft. Big Creek Gulch, Routt Co.; Ragged 

 Mountain, Gunnison Co. ; Mancos ; Cedar Edge. 



11. Crepis angustata Rydb. On hillsides from Mont, and Wash, to Colo, 

 and Oregon. Alt. about 8000 ft. North Park; Howe's Gulch. 



12. Crepis pumila Rydb. On hillsides from Mont, and Ida. to Colo, and 

 Calif. Soda Springs. 



13. Crepis occidentalis Nutt. On plains and hillsides from Mont, and Wash. 

 to Colo, and Calif. Alt. 5000-8000 ft. Denver; Dolores; Thompson's Park, 

 east of Mancos ; Boulder ; McCoy's, Eagle Co. ; Mancos. 



14. Crepis scopulorum Coville. In the mountains from Mont, to Colo, and 

 Utah. Alt. about 8000 ft. Cerro Summit. 



15. Crepis nana Richardson. Arctic-alpine localities from Lab. to Colo., 

 Calif, and Alaska. Mt. Lincoln. 



ii. HIERACIUM L. HAWK- WEED. 



Achenes cylindrical. 

 Flowers yellow. 



Plant 4-10 dm. high, leafy. i. H. cynosuroides. 



Plant low, 1-3 dm. high, with 1-3 stem-leaves and a few heads. 



2. H. gracilis. 



Flowers white or ochroleucous. 3. H. albiflorum. 



Achenes tapering gradually upwards. 4. H. Fendleri. 



1. Hieracium cynosuroides Arvet. On hillsides and in valleys from Mont. 

 and B. C. to Colo. Breckenridge. 



2. Hieracium gracile Hook. In the mountains from Mont, and Alaska to 

 Colo, and Calif., especially along streams. Alt. 9000-12,000 ft. Cameron 

 Pass; Chambers' Lake; Caribou; Silver Plume; high mountains about Em- 

 pire; Gray's Peak; Marshall Pass; Berthoud Pass; above Beaver Creek; 

 bank of Michigan; headwaters of Clear Creek; Anita Peak. 



3. Hieracium albiflorum Hook. Open woods from Yukon to Colo, and 

 Calif. Alt. 8000-10,000 ft. Keblar Pass; Continental Divide, Routt Co.; 

 Steamboat Springs; Mt. Harvard; Cameron Pass; mountain between Sun- 

 shine and Ward ; Buffalo Pass ; mountains near Empire ; Fish Creek Falls. 



4. Hieracium Fendleri Schultz Bip. In woods from the Black Hills of S. D. 

 to N. M. and Ariz. Alt. 6000-10,000 ft. Soldier Canon; Horsetooth Moun- 

 tain; Upper La Plata River; headwaters of Pass Creek; foot-hills, Larimer 

 Co.; mountain above Little South; headwaters of Clear Creek. 



12. NOTHOCALAIS Greene. 



i. Nothocalais cuspidata (Pursh) Greene. (Troximon cuspidatum Pursh) 

 On prairies from Ills, and S. D. to Mo. and Colo. Alt. 4000-8000 ft. Trini- 

 dad; Howe's Gulch; foot-hills, Larimer Co.; hills southeast of La Veta; 

 plains near Denver; South Cheyenne Canon; New Windsor; Horsetooth 

 Gulch; Colorado City. 



