CICHORIACEAE. 
(Qjcop 1 . — - 
.409 
15. Agoseris elata (Nutt.) Greene. ( Troximon Nuttallii A. Gray) In 
rich low ground from Mont, and B. C. to Colo, and Calif.—Alt. 7000-10,000 
ft.—Glenwood Springs; La Veta; Veta Pass; Cameron Pass; Horsetooth 
Gulch. 
16. Agoseris purpurea (A. Gray) Greene. ( Troximon auranthiacum pur- 
pureum A. Gray) In the mountains of Colo, and N. M.—Alt. about 9000 
ft.—Table Rock; Minnehaha; near Pagosa Peak; Rogers. 
17. Agoseris Greenei (A. Gray) Rydb. ( Troximon gracilens Greenei A. 
Gray) In meadows from Alb. and B. C. to Colo.—Alt. about 8000 ft.—Min¬ 
nehaha ; Chicken Creek. 
18. Agoseris gracilens (A. Gray) Greene. ( Troximon gracilens A. Gray) 
In meadows and on hillsides from Mont, and B. C. to Colo, and Utah.—Alt. 
8000-12,000 ft.—Steamboat Springs; West Indian Creek; Bear River, Routt 
Co.; Pike’s Peak; Bob Creek; mountain near Veta Pass; Red Mountain; 
between Cheyenne Mountain and Seven Lakes; West Mancos Canon; Gray- 
back mining camps; Pass Creek; Mt. Harvard; North Fork of Cache la Pou- 
dre River; Buffalo Pass; Anita Peak; summit of North Park Range, Routt 
Co. 
19. Agoseris humilis Rydb. In the mountains of Colo, and Wyo.—Alt. 
about 9000 ft.—Ironton Park, nine miles south of Ouray; Breckenridge; Ten¬ 
nessee Pass. 
20. Agoseris aurantiaca (Hook.) Greene. ( Troximon aurantiacum Hook.) 
In mountain meadows and on banks of streams from Mont, and B. C. to 
Colo.—Alt. 6000-13,000 ft.—Steamboat Springs; Pike’s Peak; Tennessee Pass; 
Delta Co.; near Teller, North Park; Mt. Hesperus; near Ironton, San Juan 
Co.; Franklin. 
21. Agoseris arizonica Greene. (A. elongata Greene) In the mountains of 
Colo., N. M. and Ariz.—Alt. 7000-9000 ft.—Grayback mining camps; Black 
Canon; near Pagosa Peak; Piedra. 
22. Agoseris rostrata Rydb. In the mountains of Colo.—Alt. 8000-9000 ft. 
—Lower Boulder Canon; mountains between Sunshine and Ward; Bear 
Creek. 
14. TARAXACUM Hall. Dandelion, Blowball. 
Outer bracts (calyculum) more or less squarrose. 
Outer bracts reflexed from the base; leaves deeply runcinate with triangular 
teeth. 
Bracts numerous; leaves broad and the terminal lobe large. 
1. T. Taraxacum. 
Bracts few; leaves narrow and the terminal lobe small. 2. T. mexicanum. 
Outer bracts or most of them appressed at the base and with spreading or re¬ 
flexed tips; leaves with short lobes or sinuate. 
Bracts conspicuously corniculate; the outer about two-thirds as long as the 
inner; achenes spinulose-toothed above and tuberculate on some of the 
ribs to near the base. 3. T. dumetorum. 
Bracts, at least the outer ones, not corniculate; these about half as long 
as the inner; achenes merely tuberculate above, smooth below; leaves 
dark green. 4. T. leiospermum. 
Outer bracts wholly appressed, short. 
Plant not dwarf; scape 5-20 cm. high; involucres 15 mm. high or more. 
5. T. montanum. 
Plant dwarf; scape 2-5 cm. high ; involucres 6-8 mm. high and about 5 mm. 
wide. 6. T. scopulorum. 
