WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 373 
24. HEDYSARUM L. 
Perennial herb with odd-pinnate leaves and terminal racemes of purple flowers: 
calyx 5-toothed, the teeth subulate; keel straight, unappendaged, longer than the 
wings; fruit a loment with 3 to 5 flat, conspicuously nerved, elliptic segments, 
1. Hedysarum pabulare A. Nels. Proc. Biol. Soc. Washington 15; 185. 1902. 
Type Locauity: Not stated. 
Range: Colorado and New Mexico. 
New Mexico: Canyoncito; near Fort Defiance; Raton. Open hills, in the Upper 
Sonoran Zone. 
25. VICIA L. Witp vetTcuH. 
Slender herbs climbing by tendrils borne at the ends of the pinnate leaves; stipules 
semisagittate; flowers in axillary racemes or few-flowered clusters; calyx 5-toothed, 
the upper divisions sometimes shorter; wings of the corolla adnate to the keel; stamens 
mostly diadelphous; style filiform, hairy all around or only on the back at the apex; 
pods flat, 2 to several-seeded, 2-valved. 
The plants are never very abundant, but are found almost all over the State, com- 
monest at middle elevations in the mountains. They are all eaten by stock and con- 
sidered good feed. Vicia cracca, the common vetch, is not infrequently cultivated 
in various parts of the State as a fodder or soiling crop. 
KEY TO THE SPECIES, 
Flowers sessile or nearly 80......-.------------- 22 - ee eee eee e eee 7. V. angustifolia. 
Flowers long-pedicellate. 
Flowers 15 mm. long or more. 
Leaflets abundantly pubescent......-.-....----------- 8. V. caespitosa. 
Leaflets glabrous, at least in age. 
Leaflets thin, not strongly veined, usually oval, often 
linear-oblong..............-.---0-22 eee eee 1. V. americana. 
Leaflets thick, strongly veined, linear or linear- 
oblong. 
Leaflets elongated-linear; plants low........... 9. V. sparsifolia. 
Leaflets, at least the upper ones, oblong to linear- 
oblong; plants tall, climbing. ...... .....10. V. dissitifolia. 
Flowers less than 9 mm. long. 
Flowers 6 to 20 in each raceme. 
Flowers pale purple, drying blue; racemes with usu- 
ally less than 10 flowers....-.........-------- 2. V. pulchella, 
Flowers white; racemes 15 to 20-flowered......-.--- 3. V. melilotoides. 
Peduncles with 1 to 4 flowers. 
Peduncles 3 to 4-flowered; flowers bright blue...... 4, V. leavenworthit. 
Peduncles 1 or 2-flowered; flowers pale blue or 
whitish. 
Pods glabrous; calyx not pilose............-.-- 5. V. exigua. 
Pods pubescent; calyx pilose.................-- 6. V. leucophaea. 
1. Vicia americana Muhl.; Willd. Sp. Pl. 3: 1096. 1801. 
Vicia truncata Nutt.; Torr. & Gray, Fl. N. Amer. 1: 270. 1838. 
Vicia linearis Nutt. op. cit. 276. 
Type Locauity: ‘‘Pennsylvania.”’ 
Rance: British America to New York and New Jersey, west to Kansas, New 
Mexico and California. 
New Mexico: Common in all the higher mountains of the State. Thickets, in the 
Transition Zone. 
