Part 6, 1929] FABACEAE: GALEGEAE I 



41. Phaca virgata (A. Gray) Rydberg, sp. now 



Astragalus Crotalariac virgalus A. Gray, Bot. Calif. 1: 149. 1876. 



Astragalus franciscanus longulus Sheldon. Minn. Bot. Stud. 1: 135. 1894. 



Astragalus franciscanus virgalus Cockerell, Bot. Gaz. 26: 437. 1898. 



Astragalus vestitus franciscanus M. E. Jones, Rev. Astrag. 110, in part, as to description. 1923. 



Perennial; stem 5 dm. high or more, sparingly pubescent or glabrate, angled, striate; 

 leaves ascending, 5-10 cm. long; stipules lance-deltoid, 5-6 mm. long; leaflets 25-35, oblong, 

 1.5-2 cm. long, 2-5 mm. wide, glabrous above, sparingly pubescent beneath, acute to truncate 

 at the apex; peduncles 1-1.5 dm. long; racemes elongate, about 1 dm. long; biacts subulate, 

 3-5 mm. long; flowers reflexed in age, but pod ascending; calyx-tube pilose, 4 mm. long, the 

 lobes lance-subulate, 3-4 mm. long; corolla ochroleucous, 10-12 mm. long; banner obovate, 

 gradually tapering below; wings nearly as long, the blade lunate, with a reflexed basal auricle, 

 scarcely as long as the claw; wing-petals similar but broader and more rounded at the apex; 

 pod more or less strigose, ovoid, sessile, about 3 cm. long and 1.5 cm. wide. 



Type locality: About San Francisco Bay, California. 

 Distribution: San Francisco Bay region. 



42. Phaca franciscana (vShcldon) A. Heller, Muhlenbergia 

 2:217. 1906. 



Astragalus Crotalariac A. Gray, Proc. Am. Acad. 6: 216, in part. 1864. 

 Astragalus franciscanus Sheldon. Minn. Bot. Stud. 135. 1894. 

 Astragalus vestitus franciscanus M. E. Jones, Rev. Astrag. 110. 1923. 



Perennial; stem angled and striate, 3-S dm. high, stout, sparingly appressed-pubescent; 

 leaves ascending, S-14 cm. 'ong; stipules deltoid, about 5 mm. long; rachis sparingly villous; 

 leaflets 25-45, oblong to oval, acute at the base, mostly rounded at the apex, sparingly villous 

 beneath, at least on the veins and the margins, 1-2 cm. long, 3-8 mm. wide; peduncles 5-12 cm. 

 long; racemes dense, 5-8 cm. long; bracts lance-subulate, 4—6 mm. long; flowers reflexed; calyx- 

 tube 4 mm. long, sparingly villous or glabrate, the lobes lance-subulate, 2-2.5 mm. long; corolla 

 ochroleucous, 10-12 mm. long, like that of P. densifolia; pod glabrous from the beginning, 

 obliquely oval-ovoid, 3 cm. long, 1.5 cm. wide, sessile. 



Type locality: San Francisco, California. 



Distribution: Around San Francisco Bay and north to Mendocino Count v, California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 13 (vat. franciscanus and /. 57 Crotalariac). 



12. Candidissimae. Tall perennials, with densely white-pubescent foliage, often decum- 

 bent at the base. Racemes short and densely flowered. Calyx-teeth deltoid to subulate. Cor- 

 olla purple or ochroleucous, the banner strongly bent at the middle. Pod sessile, much inflated, 

 round-ellipsoid, round in cross-section. 



43. Phaca candidissima Benth. Bot. Voy. Sulph. 13. 1844. 



Astragalus candidissimus S. Wats. Bibl. Ind. 191. 1878. Not A. candidissimus Ledeb. 1829. 



Astragalus Magdalenae Greene, Pittonia 1: 162. 1888. 



Tragacantha californica Kuntze, Rev. Gen. 940. 1891. 



Astragalus Crotalariac Magdalenae M. E. Jones. Contr. W. Bot. 10: 59. 1902. 



Perennial, somewhat shrubby below; stem decumbent, 5-8 dm. long, white-silky with 

 appressed hairs; leaves 4-6 cm. long; stipules broadly deltoid, 1-5 mm. long, sericeous; leaflets 

 13-19, obovate or cuneate, rounded to retuse at the apex, 5-10 mm. long, 3-8 mm. wide, silvery 

 silky-strigose on both sides; peduncles 5-10 cm. long; racemes rather lax, 3-4 cm. long; bracts 

 subulate, 1-2 mm. long; calyx silvery', 3-4 mm. long, the lobes subulate, about 1 mm. long; 

 corolla purple, about 1 cm. long; banner obovate, gradually tapering below; wings somewhat 

 shorter, the blade lunate, fully as long as the claw, with an acutish basal auricle; keel-petals 

 more curved and broader, rounded at the apex; pod sessile, canescent-strigose, ovoid-clliptic, 

 2-2.5 cm. long, about 12 mm. wide. 



Type locality: Bay of Magdalena, Lower California. 

 Distribution: Type locality and vicinity. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 13, f. 59. 



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