48 LEGUMINOSa. (pea FAMILY.) • 



1. A. didymocarpus, Hook. & Am. Slender from 3 inches to a foot high; leaflets 

 9 to 15, narrowly oblong to linear and more or less cuneate, deeply notched at the apex; 

 small flowers white and violet; pod not over two lines long, short oval and deeply 2-lobed 

 lengthwise. 



2. A. tener. Gr. A span or so in hight; leaflets similar to the last, not so deeply 

 notched or entire; pod about half an inch long, 5-10-seeded; corolla 4 or 5 lines long, 

 bright violet to pale and violet-tipped. 



3. A. oxyphysus, Gr. Canescent with very soft silky pubescence; stem erect, 2 

 to 3 ft. high; leaflets oblong an inch or less in length; peduncles much exceeding the 

 leaves; corolla greenish-white 8 lines long; bladdery pod acuminate and tapering into the 

 recurved stipe which a little exceeds the calyx. 



4. A. leucophyllus, Torr. & Gr. Less canescent than the last; flowers about half 

 an inch long; corolla yellowish-white; the thin pod unequal-sided, an inch and a half 

 long on a filiform pubescent stipe of almost equal length. 



5. A. Crotalariae, Gr., var. virgatus, Gr. Smooth or the young parts villous; sterna 

 2 or 3 ft. high, stout; stipules scarious, triangular or subulate, distinct; peduncles elon- 

 gated; racemes virgate and loose, 4 to 10 inches long; the white flowers soon deflexed. 



6. A. Menziesii, Gr. Villous with wliitish hairs or soon green and almost smoo^Ji; 

 stems sometimes decumbent, 1 to 4 ft. high; the lower stipules united opposite the leaf; 

 inflorescence similar to the last but more dense; pod larger (an inch and a half or more 

 long) and more bladdery. 



7. A. Douglasii, Gr. Cinereous-puberulent, almost smooth in age, stems ascend- 

 ing, a foot or so in height; leaflets in numerous pairs; linear or linear-oblong, 4 to 9 lines 

 long; spike, half to an inch long; 10-20-flowered; pod gibbous-ovoid, 1^ to 2 inches long. 



11. VICIA, Toum. Vetch. Tare. 



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

 short keel. Stamens diadelphous or nearly so. Style filiform, inflexed, the apex sur- 

 rounded by hairs or hairy upon the back. Pod flat 2-valved, shortly stipitate. Herbs, 

 with angular stems climbing by branched tendrils terminating the pinnate leaves; leaflets 

 entire or toothed at the apex; stipules semi-sagittate; flowers solitary or in loose axillary 

 racemes. 



* Perennials; flowers in pedunculate racemes. 



1. V. gigantea, Hook. Stout and tall, climbing several feet high; leaflets 10 to 15 

 pairs, oblong, obtuse, mucronate, an inch or two long; stipules large; peduncles 

 5-18-flowered; corolla 6 or 7 lines long, pale purple; pod broadly oblong, 1^ inches long 

 or more, smooth 3-4-seeded. 



The seeds are large and edible; blackens in drying. 



2. V. Americana, Muhl. Usually rather stout, 1 to 4 ft. high, smooth : leaflets 4 

 to 8 pairs, variable, linear to ovate-oblong, tnmcate to acute, ^ to 2 inches long; peduii- 



