Santa Barbara Milkvetch

Phaca encenadae Rydberg, sp. nov
Perennial, with a woody caudex; stem 3-5 dm. high, finely canescent; leaves 10-15 cm. long, ascending; stipules broadly deltoid, 4 mm. long; petioles 1-3 cm. long, as well as the rachis somewhat canescent; leaflets 25-35, thin, elliptic, 1-1.5 cm. long, 4—6 mm. wide, somewhat canescent-pilose beneath, glabrous above; peduncles 15-20 cm. long; bracts lanceolate, 2-3 mm. long; calyx 6-7 mm. long, spaiingly silky-canescent, the lobes subulate, attenuate, 2 mm. long; corolla ochroleucous, 12-15 mm. long, like that of P. leucopsis; pod glabrous, the stipe about 1 cm. long, the body obliquely ovoid, about 2.5 cm. long and half as wide and thick.
Type collected at Encenada, Lower California, April 12, 1882, M. E. Jones 3672 (herb. N. Y. Bot. Gard., named Astragalus curtipes).
Distribution: Lower California and San Diego County, California.

Phaca leucopsis T. & G. Fl. N. Am. 1: 694. 1840
Phaca canescens Nutt.; T. & G. Fl. N. Am. 1: 344. 1838. Not P. canescens H. & A. 1833.
Astragalus leucopsis Torr. Bot. Mex. Bound. Surv. 56. 1859.
Tragacaniha leucopsis Kuntze. Rev. Gen. 246. 1891.
Astragalus leucopsis lonchus M. E. Jones, Rev. Astrag. 119. 19^j.
Perennial; stem branched, 3-10 dm. high, often sufTruticose at the base, white-villous with short hairs; leaves 5-15 cm. long, ascending; stipules deltoid or lance-deltoid, 5-7 mm. long; petioles 8-15 mm. long, as well as the rachis more or less canescent; leaflets 19-37, oval to oblong, 0.5-2.5 cm. long, white-villous on both sides with short hairs when young, in age canescent or greener, rounded at the apex; peduncles 5-15 cm. long, erect; lacemes 4-6 cm. long, in fruit sometimes 1 dm. long; bracts subulate or lanceolate, 2 mm. long; calyx canescent, the tube 4-5 mm. long, the lobes subulate, about 2-2.5 mm. long, acuminate; corolla ochroleucous, 12 mm. long, resembling that of P. leucophylla but the banner longer in comparison with the other petals; pod minutely strigose, the stipe 10-12 mm. long, the body oval-ellipsoid, 2-3 cm. long, 1.2-2 cm. wide and thick; seeds obliquely reniform, 3 mm. long, 2 mm. wide.
Type locality: Santa Barbara, California.
Distribution: Southern California. Lower California, and northern Sonora.