Part 6, 1929] PABACEAE: GALEGEAE 349 



the blade lunate, obtuse, with a reflexed basal auricle; keel-petals similar, but broader; pod 

 sessile, ovoid, villous-pubescent, 3.5-4 cm. long, 1.5 cm. broad. 



Type locality: Bay of Magdalena. 



Distribution: Lower California; apparently also San Miguel Island, California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 12, f. 55. 



1 3. Lutosae. Low cespitose perennials, with a thick woody root, short stems, and crowded 

 white-strigose leaflets. Calyx-lobes short, lanceolate. Corolla small, white, with a purple- 

 tipped keel. Pod ellipsoid, inflated, acute, rounded-oval in cross-section. 



48. Phaca lutosa (M. E. Jones) Rydberg. 



Astragalus lutosus M. E. Jones, Contr. W. Bot. 13: 8. 1910. 



Perennial, with a thick woody taproot; stems many, less than 1 dm. high, glabrous; 

 leaves spreading, 4-7 cm. long, the rachis strigose; stipules oval to reniform, membranous; 

 leaflets 21-27, crowded, at first conduplicate, oval, 5-7 mm. long, rounded at the apex, densely 

 and coarsely strigose; peduncles short, 1-2.5 cm. long; racemes 1-4-flowered; bracts ovate; 

 pedicels 1-2 mm. long; calyx strigose, tinged with red, the tube 5 mm. long, the teeth deltoid, 

 1.5 mm. long; corolla white, the keel tipped with purple; banner S mm. long, obovate, abruptly 

 and strongly arched above the middle, retuse; wings nearly as long, the blade oblong-obovate, 

 with a rounded auricle; keel-petals shorter, the blade lunate; pod 2.5-3 cm. long, 1.5 cm. wide 

 and thick, elliptic, acute at each end, finely strigose, orbicular in cross-section; seed obliquely 

 round-reniform, 4 mm. long. 



Type locality: White River, near Dragon, Utah, near the Colorado line. 

 Distribution: Known only from the type locality. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 20. 



14. Serpentes. Low perennials, with a thick woody root and prostrate or ascending 

 stems. Calyx-lobes subulate. Corolla purplish. Pod sessile, broadly ellipsoid, mottled, or- 

 bicular in cross-section. 



49. Phaca serpens (M. E. Jones) Rydb. Bull. Torrey Club 40; 47. 

 1913. 



Astragalus serpens M. E. Jones, Proc. Calif. Acad. II. 5: 641. 1895. 



Perennial, with a thick woody root and a cespitose caudex; stems many, prostrate or 

 ascending, 5-20 cm. long, much branched, strigose; leaves 1-3 cm. long, ascending; stipules 

 broadly deltoid, 3 mm. long; leaflets 11-15, elliptic, conduplicate, 4-6 mm. long, strigose with 

 rather long hairs; peduncles 3 cm. long or less; racemes 2-5-floweied; calyx strigose, the tube 

 2 mm. long, the lobes subulate, 1 mm. long; corolla 6 mm. long, purplish; banner broadly 

 obovate; wings shorter, the blade obliquely obovate, with a basal auricle; keel-petals shorter 

 and broader, strongly arcuate, obtuse; pod sessile, broadly ellipsoid, mottled, about 1.5 cm. long, 

 1 cm. wide; seeds brown, obliquely round-reniform, 2.5 mm. long. 



Type locality: Loa Pass, Utah. 

 Distribution: Central and southern Utah. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 11, f. 52. 



15. Polares. Low cespitose perennials, with decumbent or creeping slender stems and 

 thin glabrous leaflets. Calyx-teeth lance-subulate. Flowers 1-5. Corolla purple. Pod 

 elongate-ellipsoid, black-strigose, sessile, lounded in cross-section. 



50. Phaca polaris (Seem.) Rydberg. 



Oxylropis polaris Seem. Narr. Voy. Herald 2: 24. 1852. 

 Astragalus polaris Benth.; Hook. Trans. Linn. Soc. 23: 323. 1861. 

 Tragacantha polaris Kuntze, Rev. Gen. 947. 1891. 



Perennial, with a cespitose rootstock; stems 1-2 dm. long, decumbent or creeping among 

 the moss; leaves 3-5 cm. long; stipules deltoid, membranous, connate, 4-7 mm. long; leaflets 



