216 FABACEA.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. sativa Lam.) Cultivated and 

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



33. VICIA L. VETCH. 



Racemes 3~4o-flowered ; flowers 1-2.5 cm. long. 

 Leaves decidedly pubescent. 



Stipules semi-sagittate, not toothed. i. V. 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. V. 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. calif ornica. 

 Racemes i-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 Canon Creek ; Horsetooth Gulch ; Cache la Poudre ; 

 Ft. Collins; 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 Canon; 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 Canon, 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 Canon; 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 Canon ; 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. 



