394 
CARDUACEAE. 
Peak; near Pagosa Peak; Ruby; mountains above Ouray; Berthoud Pass; 
headwaters of Clear Creek. 
6. Senecio pagosanus Heller. (S. lactucinus Greene of 1900; not of 1893) 
In the mountains of Colo.—Alt. 10,000-12,000 ft.—Little Kate Mine, La Plata 
Mountains; near Pagosa Peak; mountains above Ouray; Mt. Harvard. 
7. Senecio Holmii Greene. On alpine peaks of Colo.—Alt. 10,000-14,000 ft. 
—Ragged Mountain; Keblar Pass; Mt. Princeton; near Pagosa Peak; Mt. 
Harvard; Cameron Pass; mountains above Boreas. 
8. Senecio taraxacoides (A. Gray) Greene. (S. amplectens taraxacoides A. 
Gray) On alpine peaks of Colo.—Alt. 10,000-13,000 ft.—Cameron Pass; Mt. 
Garfield; Pike’s Peak; Mt. Harvard; Bottomless Pit, near Pike’s Peak; West 
Spanish Peak; Gray’s Peak. 
9. Senecio Soldanella A. Gray. On alpine peaks of Colo. — Alt. 11,000-14,000 
ft.—Mt. Princeton; Cameron Pass; Boreas; Cumberland Mine, La Plata 
Mountains; mountains above Cameron Pass; South Park. 
10. Senecio carthamoides Greene. ( S . Fremontii A. Gray, in part; not T. 
& G.) In rocky wet places on alpine peaks of Colo, and Wyo.—Alt. 9000- 
13,000 ft.—Ragged Mountain; mountains of Estes Park; Gray’s Peak; West 
Spanish Peak; Pike’s Peak; Silver Plume; Mt. Harvard; summit of Mt. 
Garfield; near Pagosa Peak; Upper La Plata River; Keblar Pass; Berthoud 
Pass; Chambers’ Lake; headwaters of Clear Creek; Massif de l’Arapahoe. 
n. Senecio blitoides Greene. (S. Fremontii A. Gray, in part; not T. & G.) 
In wet rocky places on the higher mountains of Colo.—Alt. 8000-12,000 ft.— 
Mountains above Ouray; Crested Butte. 
12. Senecio invenustus Greene. On the higher peaks of Colo.—Alt. about 
12,000 ft.—Near Pagosa Peak; Pike’s Peak. 
13. Senecio triangularis LI00k. In wet places, especially along mountain 
streams, from Alb. and Alaska to Colo, and Calif.—Alt. 8000-11,000 ft.— 
Mt. Harvard; Ruby; Upper La Plata River; Steamboat Springs; Cameron 
Pass; headwaters of Pass Creek; Delta Co.; near Pagosa Peak; Mt. Ouray; 
Marshall Pass; Red Mountain road, south of Ouray; between Sunshine and 
Ward; Buffalo Pass; Berthoud Pass; Hematite; Gore Pass; Beaver Greek; 
Michigan Creek; Breckenridge; headwaters of Clear Creek; summit of North 
Park Range. 
14. Senecio admirabilis Greene. In the mountains of Colo, and Wyo.— 
Alt. 7500-10,000 ft.—Twin Lakes; Four-mile Hill, Routt Co.; Trappers’ Lake; 
Breckenridge; Box Canon, west of Ouray; Mt. Harvard; Keblar Pass; Mar¬ 
shall Pass; Empire; Vance Junction. 
15. Senecio serra Hook. In valleys from Mont, and Wash, to Colo, and 
Ore.—Gunnison Co.; Grizzly Creek. 
16. Senecio lapathifolium Greene. In the mountains of Colo.—Alt. about 
12,000 ft.—Mountains above Ouray; Mt. Harvard. 
17. Senecio crassulus A. Gray. In the mountains from Mont, and Ida. to 
Colo, and Utah.—Alt. 8000-13,000 ft.—Silver Plume; Ward, Boulder Co.; 
Trappers’ Lake; Cameron Pass; mountains above Ouray; North Park; moun¬ 
tain sides near Empire; Little Kate Mine and Cumberland Mine, La Plata 
Mountains; near Pagosa Peak; Eldora to Baltimore; head of the Red River, 
Franklin; mountain northeast of Boreas; Gray’s Peak; Boreas; headwaters 
