274 NORTH AMERICAN FLORA [Volume 24 



46. Homalobus Antiselli (A. Gray) Rydb. Bull. Torrey Club 

 50:271. 192a. 



Homalobus mulliflorus Torr. Pacif. R. R. Rep. 7: 10. 1855. Not H. mulliflorus T. & G. 1838. 

 Astragalus Antiselli A. Gray, Bot. Calif. 1: 152. 1876. 

 Astragalus Hasseanus Sheldon, Minn. Bot. Stud. 1: 124. 1894. 

 Astragalus Irichopodus Antiselli Jepson. Man. Fl. PI. Calif. 572. 1925. 



A perennial, with a cespitose caudex ; stems 3-10 dm. high, more or less cinereous-strigose, 

 erect, branching, nearly terete, striate; leaves 5-15 cm. long; stipules lanceolate to deltoid, 

 distinct, 3-5 mm. long; leaflets 1 1-27, oblong or elliptic, 5-20 mm. long, 2-5 mm. wide, glabrous 

 above, grayish-strigose beneath, obtuse to retuse at the apex; peduncles 5-10 cm. long; racemes 

 rather short in flower, lax in fruit, 4-8 cm. long; calyx canescent-strigose, the tube 3.5 mm. 

 long, the teeth subulate, 1 mm. long; corolla ochroleucous, similar to that of H. stenophyllus; 

 banner about 1 cm. long, obovate; wings somewhat shorter, obtuse; keel-petals about 8 mm. 

 long; pod glabrous, stipitate, the stipe 12-14 mm. long, the body elliptic, acute at each end, 

 15-18 mm. long; seed olive-brown, obliquely reniform, 2.5 mm. long, 2 mm. broad. 



Type locality: Hillsides, Santa Barbara, California. 



Distribution: Southern California. 



Illustrations: M. E. Jones, Rev. Astrag. pi. 2, /. 5; Contr. W. Bot. 10: pi. 2. 



47. Homalobus filipes (Torr.) A. Heller, Muhlenbergia 9: 67. 1913. 



Astragalus filipes Torr. ; A. Gray, Proc. Am. Acad. 6: 226. 1864. 

 Tragacantha filipes Kuntze, Rev. Gen. 944. 1891. 



A perennial, with a cespitose caudex; stems erect, slender, branched, 3-10 dm. high, stri- 

 gose; leaves 5-8 cm. long; stipules lanceolate to triangular, more or less adnate to the petioles 

 but not connate; leaflets 7-1 1, linear to filiform, strigose, 8-15 mm. long, 1 mm. or less wide; 

 racemes lax, including the peduncle 1-2 dm. long; bracts subulate, 1-2 mm. long; calyx strigose 

 with mixed white and black hairs, the tube 3 mm. long, the teeth deltoid, 1 mm. long, acute; 

 corolla white; banner 8 mm. long, obovate; wings nearly as long, the blade obliquely oblance- 

 olate, with a rounded basal auricle, about equaling the claw; keel-petals lunate, with a rounded 

 apex and a large rounded basal auricle; pod sparingly strigulose, the stipe 8-10 mm. long, the 

 body oblong, about 2 cm. long, 4—5 mm. broad. 



Typh locality: Interior of Washington, near Fort Okanogan. 

 Distribution: Washington, Oregon, Idaho, and Nevada. 



48. Homalobus inversus (M. E. Jones) Rydb. Bull. Torrey 

 Club 50: 271. 1923. 



Astragalus inversus M. E. Jones, Zoe 4: 276. 1893. 



Astragalus filipes inversus Jepson, Man. Fl. PI. Calif. 571. 1925. 



A perennial, with a cespitose woody caudex; stems glabrous, striate, flexuose, 4—7 dm. 

 high; leaves 5-10 cm. long; stipules deltoid, 4-8 mm. long; leaflets linear, 8-20 mm. long, 1-2 

 mm. wide, glabrous; peduncles 1-1.5 dm. long; racemes 5-10 cm. long, laxly 5- 1 0-flowered ; 

 calyx strigose, the tube 3 mm. long, the teeth 1 mm. long; corolla ochroleucous, about 12 mm. 

 long; banner obovate, scarcely longer than the other petals; keel-petals blunt; pod glabrous, 

 the stipe about 1 cm. long, the body tapering at each end, the upper suture arched, the lower 

 straight or somewhat concave, 2-3 cm. long, 3.5-4 mm. wide; seeds brown, obliquely reniform, 

 nearly 3 mm. long, 2 mm. wide. 



Type locality : Susanville, California. 



Distribution: Modoc and Lassen counties. California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 2, pi. 77, f. S. 



49. Homalobus gaviotus (Elmer) Rydb. Bull. Torrey Club 

 50: 272. 1923. 



Astragalus Antiselli phoxus M. E. Jones, Contr. W. Bot. 10: 65. 1902. . 



Astragalus gaviotus Elmer, Bot. Gaz. 39: 54. 1905. 



Astragalus trichopodus gaviotus Jepson, Man. Fl. PI. Calif. 571. 1925. 



A perennial, with a cespitose caudex; stems stout, terete, cinereous-strigose, 3-5 dm. high, 

 branched above; stipules lanceolate, distinct, 3-5 mm. long; leaves 5-10 cm. long; leaflets 



