FABACEAE. 
205 
1. Tium Drummondii (Dougl.) Rydb. ( Astragalus Drummondii Dougl.) 
On hills, plains and valleys from Sask. and Alb. to Neb. and Colo.—Alt. 
4000-8000 ft.—Southeast of La Veta; Cimarron; La Veta; Cheyenne Canon; 
Ft. Collins; Colorado Springs; Horsetooth Gulch; east of Soldier Canon; 
Boulder. 
2. Tium racemosum (Pursh) Rydb. ( Astragalus racemosus Pursh.) On 
plains and hills, N. D. to Kans. and N. M.—Oak Creek; Apishipa Creek, 
Otero Co.; east of Soldier Canon. 
3. Tium scopulorum (Porter) Rydb. ( Astragalus scopulorum Porter; A. 
rasus Sheldon) On hills and open woods in the mountains of Colo.—Alt. 
5000-9000 ft.—Grand Junction; Mancos; Grayback mining camps and Placer 
Gulch; Los Pinos; Cerro Summit; Cimarron; Dolores. 
4. Tium alpinum (L.) Rydb. ( Astragalus alpinus L.) In the moun¬ 
tains and in open woodlands from Lab. and Alaska to Vt. and Colo.—Alt. 
6000-11,000 ft.—Lake City; Boulder Canon; near Empire; Carson; Twin 
Lakes; Veta Pass; North Park; Twin Lake Creek; near La Plata Post 
Office; Mt. Harvard; headwaters of Sangre de Cristo Creek; Como, South 
Park; Piedra; North Park, near Teller; Leroux Park; Michigan River; 
Chambers’ Lake; Graymont. 
5. Tium sparsiflorum (A. Gray) Rydb. ( Astragalus sparsidorus A. 
Gray) In the mountains of Colo.—Alt. about 8000 ft.—Cascade Canon. 
6. Tium huministratum (A. Gray) Rydb. ( Astragalus huministratus A. 
Gray) In the mountains from Colo, and Utah to N. M. and Ariz.—Alt. 
about 7000 ft.—Los Pinos. 
7. Tium desperatum (Jones) Rydb. ( Astragalus desperatus Jones) In 
the mountains of Colo, and Utah.—Grand Canon. 
15. ATELOPHRAGMA Rydb. 
Pods stipitate, flat. 
Pod long-stipitate, glabrous, at least in age. 
Pod short-stipitate, hairy. 
Pod sessile, more turgid. 
Racemes many-flowered; leaflets oblong; septum narrow. 
Racemes elongated; pod short obovate. 
Racemes short; pod oblong. 
Racemes few-flowered; leaflets linear ; septum broad. 
1. A. aboriginum. 
2. A. Macounii. 
3. A. elegans. 
4. A. Shear is. 
5. A. Brandegei. 
1. Atelophragma aboriginum (Richardson) Rydb. ( Phaca aboriginorum 
Richardson) On mountain sides and in open woods from Alb. and Yukon 
to Colo, and Nev.—Alt. up to 10,000 ft.—Mountain near Veta Pass. 
2. Atelophragma Macounii Rydb. ( Astragalus Macouni Rydb.) In the 
mountains from Alb. and B. C. to Colo.—Exact locality not given. 
3. Atelophragma elegans (Hook.) Rydb. ( Phaca elegans Hook.; Astra¬ 
galus oroboides americanus A. Gray) In the mountains from Que., Sask. 
and Idaho to Colo.—Alt. 7000-13,000 ft.—Georgetown; Mt. Lincoln; Lake 
City; headwaters of Clear Creek; near Empire; South Park; Mancos; 
North Park; Empire. 
4. Atelophragma Shearis Rydb. In the mountains of Colo.—Twin Lakes. 
5. Atelophragma Brandegei (Porter) Rydb. ( Astragalus Brandegei Por¬ 
ter) In the mountains from Colo, and Utah to Ariz.—Alt. about 6500 ft.— 
Arkansas River bluffs; Pleasant Valley. 
