Part 7, 1929J FABACEAE: GALEGEAE 427 



that of H. tenem; pod about 1.5 cm. long, arcuate, lunate, glabrous, 3 mm. wide and 2.5 mm. 

 thick, cordate in cross-section. 



Type locality: Vallejo, California. 

 Distribution: Central California. 



Illustration: Jepson, Man. Fl. PI. Calif. /. 569 (as Astragalus tenor); Proc. Calif. Acad. 2: 

 f.37. 



26. Hamosa tenera (A. Gray) Rydb. Bull. Torrey Club 

 54:322. 1927. ■ 



Phaca aslragalina Hook. & Am. Bot. Beech. Voy. 334. 1838. 



Astragalus hypoglottis slrigosus Kellogg, Proc. Calif. Acad. 2: 115, in part. 1861. 



Astragalus tener A. Grav, Proc. Am. Acad. 6: 206. 1864. 



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



Astragalus slrigosus Sheldon, Minn. Bot. Stud. 9: 24. 1894. 



Astragalus pauperculus Greene, Pittonia 3: 224. 1897. 



Astragalus Titi Eastw. Bull. Torrey Club 32: 195. 1905. 



A slender annual; stem at first erect, later branched at the base and spreading, 0.5-2 dm. 

 long, sparingly strigose or glabrate; leaves 3-5 cm. long, ascending; stipules ovate-deltoid, 

 acuminate, 2 mm. long, adnate to the petioles; leaflets 5-13, strigose beneath, glabrous above, 

 5-12 mm. long, those of the lower leaves cuneate or obcordate, retuse, those of the upper 

 leaves mostly oblong or linear, retuse or truncate, rarely obtuse at the apex, cuneate at the base; 

 peduncles 3-5 cm. long, slender; racemes very short, head-like, 2-7-flowered; bracts lanceolate, 

 1 mm. long; pedicels about 1 mm. long; calyx black-hairy, the tube less than 2 mm. long, the 

 teeth lance-subulate, 1 mm. long; corolla 6-8 mm. long, bluish-purple, with the claws yellowish ; 

 banner obovate, broadly emarginate ; wings 1-2 mm. shorter, the blade oblong, strongly arcuate, 

 very obtuse at the apex, with a long reflexed basal auricle; keel-petals much shorter, the blade 

 broadly lunate, strongly arcuate and acute at the apex; pod 1-1.5 cm. long, 2 mm. wide, and 2.5 

 mm. thick, canescent, nearly straight, sulcate on the lower suture, broadly cordate in cross- 

 section. 



Type locality: California. 



Distribution: California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 68, f. 237. 



27. Hamosa Clariana (Jepson) Rydberg. 



Astragalus Clarianus Jepson, Man. Fl. PI. Calif. 578. 1925. 



An annual; stem branching from the base, 7-20 cm. high, glabrous; leaves 2-4 cm. long, 

 spreading; stipules ovate, 2 mm. long; leaflets 7—11, oblong-cuneate or cuneate, emarginate, 

 4—8 mm. long, glabrous above, strigose beneath; peduncles 3-4 cm. long; racemes 2-6-flowered, 

 subcapitate; bracts ovate, 1 mm. long; calyx black-hairy, the tube 2 mm. long, the teeth 

 subulate, 1 mm. long; corolla white, tipped with purple, or more or less purple throughout, 

 9—11 mm. long; banner broadly obovate, strongly arched, slightly emarginate; wings shorter, 

 the blade obliquely oblanceolate; keel-petals still shorter, the blade broadly lunate; pod 

 subterete, attenuate below into a stipe-like base, minutely strigose, 3-4 cm. long, strongly 

 curved. 



Type locality': Rocky slopes. Napa Range, near St. Helena, California. 

 Distribution: Northern California. 



28. Hamosa Rattani (A. Gray) Rydb. Bull. Torrey Club 

 54: 324. 1927. 



Astragalus Rattani A. Gray, Proc. Am. Acad. 19: 75. 1883. 



An annual; stem soon branched at the base, about 3 dm. high, striate, glabrous or nearly so; 

 leaves ascending, 2-5 cm. long ; stipules deltoid, 2-3 mm. long; leaflets 9-15, cuneate to obovate- 

 oblong, retuse, glabrous above, sparingly strigulose or glabrate beneath, 5-10 mm. long; 

 peduncles 4-6 cm. long; racemes subcapitate, 5-10-flowered; bracts lanceolate, 1 mm. long; 

 calyx black-hairy, the tube 2 mm. long, the teeth subulate, fully 1 mm. long; corolla bluish- 

 purple, about 1 cm. long, similar to that of H. tenera; pod nearly straight, 4-6 cm. long, 2 mm. 



28 



