336 NORTH AMERICAN FLORA [Volume 24 



5. 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. 

 Illustrations: Bot. Mex. Bound. Surv. pi. 16; M. E. Jones, Rev. Astrag. pi. 19, f. 73 (includ- 

 ing var. lonchus). 



6. 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. 



7. Phaca trichopoda Nutt.; T. & G. Fl. N. Am. 1 ; 343. 1838. 



Astragalus trichopodus A. Gray, Proc. Am. Acad. 6: 218. 1864. 

 Tragacantha trichopoda Kuntze, Rev. Gen. 948. 1891. 



Perennial; stem 3-6 dm. high, sparingly strigose, angled; leaves 6-10 cm. long, ascending; 

 stipules lanceolate, acuminate, 3-5 mm. long; petioles about 1 cm. long, as well as the rachis 

 slightly strigose; leaflets 25-37, oblong, 1-2 cm. long, 3-5 mm. wide, strigose beneath, glabrous 

 above, rounded at the apex ; peduncles 5-10 cm. long; racemes 3-5 cm., in fruit up to 8 mm. long; 

 bracts lanceolate, 1-2 mm. long; calyx strigose, the tube 3-3.5 mm. long, the hairs on the lobes 

 usually blackish, the lobes subulate, 1 mm. long; corolla ochroleucous; banner obovate, gradu- 

 ally tapering below, 10-12 mm. long; wings somewhat shorter, the blade oblong-lunate, obtuse, 

 about equaling the narrow claw, with an acute basal auricle; keel-petals similar but broader; 

 pod glabrous, except the stipe, the stipe 8-10 mm. long, the body ellipsoid, 1.5-2 cm. long, 8-9 

 mm. wide. 



Type locality: Borders of woods near the sea, Santa Barbara, California. 

 Distribution: Southern California and Lower California. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 18, f. 69. 



8. Phaca capillipes (M. E. Jones) Rydberg. 



Astragalus capillipes M. E. Jones, Rev. Astrag. 117. 1923. 



Perennial; stem 3-8 dm. high, sparingly strigose; leaves about 1 dm. long, ascending or 

 spreading; stipules deltoid, 3-5 mm. long; leaflets 25-35, oblong or elliptic, 8-15 mm. long, 

 obtuse or retuse, strigose beneath, glabrate above; peduncles 10-12 cm. long; racemes 6-10 cm. 

 long; bracts subulate, 2-3 mm. long; calyx strigose, the tube 3 mm. long, the teeth subulate, 

 1 5 mm. long; corolla ochroleucous; banner obovate, 12 mm. long; wings shortei, the blade 



