BRASSIACEAE. 
163 
11. Draba chrysantha S. Wats. On alpine peaks of Colo, and N. M.—Alt. 
12,000-13,000 ft.—Gray’s Peak. 
12. Draba graminea Greene. On alpine peaks of Colo.—Alt. about 12,500 
ft.—Telluride; Carson. 
13. Draba crassa Rydb. On alpine peaks of Wyo. and Colo.—Alt. 8000- 
12,500 ft.—Cumberland Mine, La Plata Mountains. 
14. Draba streptocarpa A. Gray. On alpine peaks and rocky places in the 
higher mountains of Colo.—Alt. 6000-13,000 ft.—Pike’s Peak; headwaters of 
Clear Creek; South Park; Gray’s Peak; West Indian Creek; West Spanish 
Peak; near Colorado Springs; headwaters of Sangre de Cristo Creek; moun¬ 
tains near Veta Pass; North Cheyenne Canon; Robinson; northwest of 
Como; east of Cameron Pass; Pennock’s mountain ranch; Beaver Creek; 
Chambers’ Lake; Crystal Park; Gentian Ridge; headwaters of Clear Creek 
and alpine ridges east of Middle Park; Gray’s Peak; South Park; Empire; 
Eldora to Baltimore. 
Draba streptocarpa Grayana Rydb. Alpine peaks of Colo.—Alt. 12,coo- 
13,000 ft.—Mountains northwest of Como; Gray’s Peak trail. 
15. Draba spectabilis Greene. In the mountains of Wyo. and Colo.—Alt. 
9000-12,000 ft.—Near Ironton, San Juan Co.; Cumberland Basin and Bob 
Creek, La Plata Mountains; Upper La Plata Canon; Mt. Hesperus; moun¬ 
tains about Ouray; Red Mountain. 
16. Draba Helleriana Greene. ( D. oxyloba Greene.) In the mountains of 
Colo, and N. M.—Alt. 8000-10,000 ft.—Sargent’s; Van Boxle’s ranch, above 
Cimarron; Grayback Mining Camps; headwaters of Sangre de Cristo Creek; 
Ojo; Silverton. 
17. Draba luteola Greene. In the mountains of Colo.—Alt. 9000-12,000 ft. 
—Cumberland Basin, La Plata Mountains; Idaho Springs; Upper Canon of 
the La Plata; near Pagosa Peak; Eldora to Baltimore. 
18. Draba aureiformis Rydb. ( D. Bakeri Greene.) In the mountains of 
Colo, and the Black Hills of S. D.—Alt. 9000-11,000 ft.—Near Graymont; 
headwaters of Pass Creek; Carson; Palsgrove Canon. 
19. Draba aurea Wahl. Among rocks in the higher mountains and in sub¬ 
arctic regions from Greenl. to B. C. to Colo, and Ariz.; also in northern 
Europe.—Alt. 9000-13,000 ft.—Headwaters of Clear Creek; Massif de l’Arapa- 
hoe; Battlement Crag, Pike’s Peak; Como; West Spanish Peak; near Iron- 
ton, San Juan Co.; between Bald Mountain and Seven Lakes; Dark Canon; 
Cripple Creek road; vicinity of Como; Boreas; Silverton; Leroux Creek; 
Chambers’ Lake; Graymont; Alpine Tunnel; Grand Lake; Mt. Abram, 
Ouray; Mt. Baldy; Mt. Garfield; Middle Park; Eldora to Baltimore. 
20. Draba decumbens Rydb. Alpine peaks of Colo.—Alt. 12,000-13,000 ft. 
—Gray’s Peak. 
22. CARDAMINE L. Bitter-cress. 
Leaves all entire ; blades more or less cordate, dentate. 
Plant glabrous or nearly so. 1. C. cordifolia. 
Plant, at least the stem, densely pilose ; leaves also hairy. 2. C. infausta. 
Leaves, at least some of them, pinnate. 
Petals about 5 mm. long; leaflets 1-7; the terminal much larger, cordate, ovate 
or reniform, sinuately toothed. 3. C. vallicola. 
Petals 2-4 mm. long; leaflets 5-15, from linear to obovate. 
