Part 5, 1929] FABACEAE: GALEGEAK 301 



26. Xylophacos Newberryi (A. Gray) Rydb. Bull. Torrey Club 

 32:662. 1906. 



Astragalus Chamaeluce A. Gray, in J. C. Ives. Rep. Colorado Riv. Bot. 10, in part. 1860. 

 Astragalus Newberryi A. Gray, Proc. Am. Acad. 12: 55. 1876. 

 Astragalus candelarius exiguus Sheldon. Minn. Bot. Stud. 1: 143, in part. 1894. 

 Astragalus Newberryi castoreus M. E. Jones, Proe. Calif. Acad. II. 5: 658. 1895. 



A subacaulescent perennial, with a cespitose caudex ; stems very short, covered with the 

 deltoid stipules, which are 4—6 mm. long, densely strigose; leaves crowded, ascending, 3-6 cm. 

 long; leaflets 5-7, obovate, thick, densely white-strigose, 5-14 mm. long, 3-10 mm. wide; 

 peduncles 2 cm. long or less, in fruit often recurved; racemes very short, 2-5-flowered; bracts 

 lanceolate, 3-5 mm. long; calyx silky-strigose with white hairs, only those of the teeth some- 

 times blackish, the tube about 1 cm. long, the teeth subulate, 2-3 mm. long; corolla about 2 cm. 

 long, dark-purple; banner obovate, only slightly arched upwards; wings a little shorter, the 

 blade linear, with a prominent auricle, shorter than the claws; keel-petals still shorter, the blade 

 lunate, rather slightly arcuate, rounded at the apex; pod obliquely ovoid, densely silky-villous, 

 about 2 cm. long and fully 1 cm. wide and 1.5 cm. thick, the tip upturned. 



Type locality: Frontiers of Utah and Arizona. 



Distribution: Central Nevada, Arizona, Utah, and western New Mexico; apparently also Inyo 

 County, California. 



Illustrations: M. E. Jones, Rev. Astrag. pi. 51, f. 175; pi. 52 (var. castoreus); Contr. W. Bot. 

 10: pi. n. 



27. Xylophacos medius Rydb. Bull. Torrey Club 52: 232. 1925. 



Astragalus eriocarpus M. E. Jones, Zoe 3: 293. 1893. Not A. eriocarpus S. Wats. 1871. 

 Astragalus conseclus Sheldon, Minn. Bot. Stud. 1: 143, in part. 1894. 

 Astragalus Newberryi X eurekensis M. E. Jones, Rev. Astrag. 217. 1923. 



A subacaulescent perennial, with a cespitose leafy caudex; leaves 4—7 cm. long, ascending; 

 stipules lanceolate, 3-5 mm. long; leaflets 5-9, oblanceolate or rhombic-oblanceolate, acute, 

 1-2.5 cm. long, 5-8 mm. wide, silky-canescent on both sides; peduncles 5-8 cm. long; racemes 

 3-6-flowered; bracts lanceolate, 5-6 mm. long; calyx strigose, somewhat nigrescent, the tube 

 about 1 cm. long, the teeth 2-3 mm. long; corolla 2-2.5 cm. long, purple- tinged, the keel with a 

 dark purple tip, otherwise as that of A'. Newberryi; pod villous, the hairs becoming tawny in 

 age, obliquely lance-ovoid in outline, rounded at the base, arcuate, 2 cm. long, 1 cm. thick and 

 5-7 mm. wide. 



Type locality: Lake Point, Utah. 

 Distribution: Utah. 



28. Xylophacos marianus Rydb. Bull. Torrey Club 52: 233. 1925. 



A subacaulescent perennial, with a cespitose caudex; stems 1-3 dm. long; leaves 3-7 cm. 

 long, with a slender rachis; stipules ovate or deltoid, 2-4 mm. long; leaflets 11-19, oval, 

 obovate, or broadly elliptic, mostly obtuse, 3-8 mm. long, gray ish-strigose ; peduncles 2-4 cm. 

 long; racemes 2-6-flowered; bracts lanceolate, 3 mm. long; calyx villous, the tube 8-10 mm. 

 long, the teeth subulate, 3 mm. long; corolla about 2 cm., rarely 2.5 cm. long, apparently only 

 purple-tinged; banner obovate, slightly arcuate; wings shorter, the blades oblong, with a 

 broad auricle; keel-petals still shorter, the blade broadly lunate, rounded at the apex; pod 

 lance-ovoid, 15-18 mm. long, 8 mm. wide and thick, moderately arcuate throughout, villous 

 but not densely so. 



Type locality: Marysvale, Utah. 

 Distribution: Central Utah. 



29. Xylophacos eurekensis (M. E. Jones) Rydb. Fl. Rocky Mts. 



504, 1063. 1917. 



Astragalus glareosus M. E. Jones, Zoe 3: 291. 1893. Not A. glareosus Dougl. 1831. 

 Astragalus eurekensis M. E. Jones, Contr. W. Bot. 8: 12. 1898. 



A cespitose perennial, with a deep root; stems very short, covered with the remains of leaf- 

 bases; leaves ascending, 5-15 cm. long; stipules lanceolate, 4-5 mm. long; leaflets 7-15, 



