206 FABACEAE. 



cately feather-veined, cuneate-obovate, truncate or retuse, 10-15 

 mm. long, more or less dentate toward the mucronulate apex; 

 racemes exceeding the leaves, 3-5-flowered; calyx-teeth all broad 

 and short; corolla 12-18 mm. long, deep purple. 



Summit of Mount Santiago, Orange County, and in the pine 

 belt of the Cuyamaca Mountains. 



3. V. sativa L. Stoutish, erect or nearly so, 6-9 dm. high, some- 

 what pubescent; leaflets 8-12, obovate-oblong, truncate or retuse, 

 mucronate; flowers 1 or 2, subsessile, 15 mm. long, red-purple. 



Rarely seen as an escape. Native of Europe. 



4. V. exigua Nutt. Slender, 3-6 dm. high, slightly pubescent; 

 leaflets 4-6, oblong-linear, obtuse; peduncles filiform, shorter than 

 the leaves, 1-2-flowered; calyx-teeth lanceolate from a broad base; 

 corolla white or purplish, 4-6 mm. long; pod glabrous, 4-5-seeded. 



Occasional on grassy hills, mostly in sandy soil. 



5. V. hassei Wats. Taller and less delicate than the last; leaves 

 longer and more numerous, deeply notched at apex; flowers 6 mm. 

 long; pod shortly stipitate, 5-8-seeded. 



Same range as the last and probably only a robust form of it. 



14. LATHYRUS L. Wild Pea. 



Much resembling Vicia, but usually larger with 

 broader leaves and flowers. Style-branches dilated and 

 flattish above, hairy along the inner side. 



Lateral calyx-teeth much longer than the tube. 1. L. violaceus. 

 Lateral calyx-teeth about equaling the tube. 



Corolla nearly white or faintly flesh-color. 2. L. laetiflorus. 



Corolla purple. 3. L. alfeldi. 



1. L. violaceus Greene. Sparsely and minutely pubescent 

 throughout; stems slender, shrubby below, 1-2.5 m. high, acutely 

 angled; stipules entire, narrow, less than half as long as adjacent 

 leaflet; leaflets about 12, elliptic, obtuse, with a deflexed mucro; 

 peduncles .surpassing the leaves, many-flowered and rather dense; 

 flowers 16 mm. long; lateral calyx-teeth much longer than the tube; 

 the lowest equaling these and half as broad; the upper pair short, 

 slightly connivent; petals purple; standard strongly obcot^te; 

 wings slightly shorter than keel. 



Common in the foothills, especially in the chaparral belt. 



2. L. laetiflorus Greene. Sparsely and minutely appressed 

 pubescent; stems slender, herbaceous or somewhat shrubby below, 

 1-2.5 m. high; leaves of rather firm texture, elliptic-lanceolate; 

 peduncles surpassing the leaves, loosely many-flowered; flowers 

 about 22 mm. long; lateral pair of calyx-teeth broadly subulate, 

 about equaling the tube, the lowest subulate, longer than the tube, 

 the upper pair very short, connivent at tip; petals nearly white, 

 faintly flesh color; standard obcordate, the sides abruptly reflexed, 

 purple-veined; wings meeting and concealing the keel from above. 



Less common than the last, but having about the same range. 



