21() FAB ACE A E. 



3. Hedysarum carnosulum Greene. On dry hills from Colo, to N. M. and 

 Ariz. — Canon City; Cedar Hills. 



34. ONOBRYCHIS Scop. Sand-foin. 



I. Onobrychis Onobrychis (L.) Rydb. (O. saliva Lam.) Cultivated and 

 occasionally escaped from Mont, to Colo.— Alt. about 8000 ft.— Walsenburg. 



33. VICIA L. Vetch. 



Racemes 3-40-flowered ; flowers 1-2.5 cm. long. 

 Leaves decidedly pubescent. 



Stipules semi-sagittate, not toothed. i. F. caespitosa. 



Stipules broadly semi-hastate, strongly toothed. 2. V. trifida. 



Leaves glabrous or sparingly pubescent when young. 

 Leaflets linear or oblong to oval, not toothed. 



Leaflets oblong or linear, rather thick and strongly veined. 

 Stipules narrowly semi-sagittate ; often entire. 



Leaflets elongated, narrowly linear ; plant low. 3. V. sparsifolia. 



Leaflets, at least the upper ones, oblong or linear-oblong ; plant tall, 

 climbing. 4- F. dissitifolia. 



Stipules broadly semi-hastate or semi-orbicular in outline, sharply toothed. 



5. V. oregana. 

 Leaflets usually oval, thin and not strongly veined. 6. V. americana. 



Leaflets obovate-cuneate, truncate and toothed at the apex. 7. V. californica. 

 Racemes 1-2-flowered ; flowers 5-6 mm. long. 8. V. producta. 



1. Vicia caespitosa A. Nelson. In mountain valleys of Wyo. and Colo. — 

 Alt. 5000-7500 ft. — Dixon Caiion Creek ; Horsetooth Gulch ; Cache la Poudre ; 

 Ft. Collin.s ; Manitou ; Colorado City. 



2. Vicia trifida D. Dietr. In river valleys from Minn, and Mont, to Neb. 

 and Colo. — Alt. 4000-9000 ft. — Mesas near Pueblo; Cucharas River, below 

 La Veta; Veta Pass; butte five miles southwest of La Veta; mesas near 

 Colorado Springs; Ft. Collins; Routt Co.; Campton's ranch, North Poudre; 

 Moon's ranch ; Spring Caiion ; Empire. 



3. Vicia sparsifolia Nutt. (Lathyrus linearis Nutt. ; V. linearis Greene) 

 On prairies and in valleys from Man., Alb. and Ida. to Kans. and Calif.— 

 Alt. 4000-10,000 ft. — Florissant; Denver; Arboles; Turkey Creek and tribu- 

 taries; Roswell ; Grayback mining camps and Placer Gulch; Table Rock. 



4. Vicia dissitifolia (Nutt.) Rydb. {Lathyrus dissitifolius Nutt.) In val- 

 leys of Neb. and Colo.— Alt. 4000-9000 ft.— Lake City; Bob Creek, West La 

 Plata Mountains; Colorado Springs; Mancos Canon; Roswell; Green Moun- 

 tain Falls; Walcott; New Windsor; Dillon Caiion, Trinidad; Empire. 



5. Vicia oregana Nutt. {V. Americana truncata Port. & Coult., in part.) 

 On river banks from Minn., Sask. and Wash, to Kans. and Calif. — Alt. 4000- 

 10,000 ft. — Palmer Lake; Denver; headwaters of Sangre de Cristo Creek; 

 Upper La Plata Caiion; Mancos. 



6. Vicia americana Muhl. On prairies and in rich river valleys from N. 

 B. and Ida. to Va. and Ariz. — Alt. 4000-10,000 ft. — Cucharas River, below 

 La Veta; North Cheyenne Caiion; Glenwood Springs; White River Plateau; 

 Walsenburg; Walcott, Eagle Co.; Cerro Summit; southeast of Ouray; Big 

 Creek Gulch ; Empire. 



7. Vicia californica Greene. In river valleys from Calif, and Wyo. to 

 Colo. — Alt. about 7500 ft. — A doubtful specimen from Ridgeway. 



