Vicia. LEGUMlNOSyE. jfj^ 



Var. elatus, Watson (Bot. King Exp. 77) ; a form with erect and less-brduched 



stems, 6 to 18 inches higli. 



Mount Dana, near the summit, at 13,000 feet. Brewer. Also in W. Nevada, with the taller 

 variety {JVaisou), S. Utah {Farrij), and through the dry interior to Idaho, Wyoming, and New 

 Mexico. 



14. OLNEYA, Gray. 

 Calyx campanulate ; the teeth nearly equal, tlte two upper ones united. Petals 

 free, equal : standard orbicular, deeply emarginate, reflexed ; wings oblong ; keel 

 broad, obtuse, incurved. Stamens 10, diadelphous : anthers uniform. Ovary several- 

 ovuled : style incurved, bearded above. Pod thick, with coriaceous valves, 1-2- 

 seeded, broadly linear. Seeds ovate. — A small tree, often armed with spines 

 below the leaves ; leaves equally or unequally pinnate ; leaflets thick, entire ; 

 stipules none ; flowers white or purplish in short axillary racemes. 



1. O. Tesota, Gray. Fifteen to twenty feet high or more, canesceut with 

 minute hairs : spines short and stout, in pairs near the base of the peti^^les : leaflets 

 5 to 7 pairs, cuneate-oblong, 2 to 8 lines long, obtuse : flowers 3 or 4 in a loose 

 racemose cluster, 4 lines long : calyx half as long : pod linear-oblong, an inch or 

 two long, 4 or 5 lines broad, rough with short glandular hairs. — PI. Thurb. 313 & 

 328 ; Torrey, Pacif. E. Eep. vii. 10, t. 5. 



In dry valleys near the Colorado River and eastward in Arizona. The Arbol cle hieiTO or Iron- 

 wood of that region. 



15. VICIA, Tourn. Vetch. Tare. 



Calyx 5-cleft or toothed, usually unequal. Wings adherent to the middle of the 

 short keel. Stamens diadelphous or nearly so ; the mouth of the sheath oblique ; 

 anthers uniform. Ovary 2 - many-ovuled : style filiform, inflexed, the apex sur- 

 rounded by hairs or hairy upon the back. Pod flat, 2-valved, sliortly stipitate (in 

 Californian species). Seeds globular ; the stalk expanded above to cover the linear 

 hilum. — Herbs, with angular stems, more or less climbing by branched tendrils 

 terminating the pinnate leaves ; leaflets entire or toothed at the apex ; stipules 

 semisagittate ; flowers solitary or in loose peduncled axillary racemes. 



A genus of 100 species or more, in the temperate regions of the northern hemisphere and in 

 South America. There are ten species indigenous in the United States and a few others ilexicau. 



* Perennials : flowers in pedunculate racemes. 



1. v. gigantea, Hook, Stout and tall, climbing several feet high, somewhat 

 pubescent : leaflets 10 to 15 pairs, oblong, obtuse, mucronate, an inch or two long; 

 stipules large : peduncles 5 - 18-flowered : calyx short, somewhat villous ; lower 

 teeth about equalling the tube : corolla 6 or 7 lines long, pale jiurple : pod liroadly 

 oblong, 1| inches long or more, glabrous, 3-4-seeded. — Fl. i. 157 ; Torr. & Gray, 

 Fl. i. 270! V. Sitchensis, Bongard, Veg. Sitcha, 129. V. Ilookeriana, AValpers, 

 Eep. i. 715. 



In woods and moist places from about San Francisco Bay northward to Oregon and Sitka. 

 The seeds are as large as peas and eatable when young : the plant turns blackish ou drying. 



2. V. Americana, INfuhl. Usually rather stout, 1 to 4 feet high, glabrous : 

 leaflets 4 to 8 pairs, very variable, linear to ovate-oblong, truncate to acute (more 

 usually oblong and obtuse, mucronulate), ^ to 2 inches long : peduncles 4-8- 

 flowered : flowers purplish, 6 to 9 lines long : calyx slightly pubescent ; teeth 

 broadly subulate, the lower narrower and not half as long as the petals : style very 

 villous at the top : pods oblong, glabrous, an inch long or more, 3 - G-seeded : seeds 



