Part 7, 1929] FABACEAE: GALEGEAE 439 



2. Hesperonix Watsoni (Sheldon) Rydberg. 



Astragalus Hendersoni S. Wats. Proc. Am. Acad. 22: 471. 1887. Not A. Hendersoni Baker. 1879. 



Astragalus Watsoni Sheldon, Minn. Bot. Stud. 1: 23. 1894. 



Astragalus pacificus Sheldon. Minn. Bot. Stud. 1: 174. 1894. 



Astragalus pruniformis M. E. Jones, Proc. Calif. Acad. II. 5: 660. 1895. 



Astragalus cymatodes Greene, Pittonia 3: 196. 1897. 



Astragalus accidens Hendersoni M. E. Jones, Rev. Astrag. 164. 1923. 



Astragalus accidens pacificus M. E. Jones, Rev. Astrag. Index. 1923. 



A perennial; stems 2-4 dm. high, decumbent at the base, more or less villous; leaves 5-10 

 cm. long, spreading, the rachis sparingly villous; stipules lanceolate, herbaceous, 4 mm. long; 

 leaflets 13-25, obovate, oval, or elliptic, 8-20 mm. long, cuneate at the base, retuse or truncate 

 at the apex, villous on both sides; peduncles 5-8 cm. long; racemes 2-4 cm. long, rather dense; 

 bracts lance-subulate, 2-3 mm. long; pedicels 1 mm. long; calyx black-hairy, the tube 7 mm. 

 long, 3 mm. broad, the teeth lanceolate or deltoid-lanceolate, 1.5-2 mm. long; corolla cream- 

 colored, 15 mm. long, similar to that of the preceding, but the wings slightly broader; pod 

 glabrous, stipitate, the stipe 6 mm. long, the body ellipsoid, about IS mm. long, 8 mm. thick, 

 and 10 mm. wide, somewhat fleshy when young, in age reticulate. 



Type locality: Foot hills of Siskiyou Mountains, Oregon. 

 Distribution: Washington to northern California. 

 Illustrations: M. E. Jones, Rev. Astrag. pi. 39; pi. 76. 



3. Hesperonix vallaris (M. E. Jones) Rydberg. 



Astragalus vallaris M. E. Jones, Contr. W. Bot. 10: 59. 1902. 



A perennial; stems glabrous, 2-4 dm. high, sulcate; leaves about 1 cm. long, ascending; 

 stipules lanceolate, 3 mm. long ; leaflets 15-19, obovate or elliptic, glabrous, cuneate at the base, 

 truncate or retuse at the apex, 10-16 mm. long; peduncles 5-10 cm. long; racemes 3-5 cm. long; 

 bracts lanceolate, ovate, 2 mm. long; calyx sparingly black-hairy, the tube about 5 mm. 

 long, the teeth subulate, 3-4 mm. long; corolla white, 18 mm. long; banner ovate-lanceolate, 

 moderately arcuate; wings shorter, the blade linear; keel-petals much shorter, broadly lunate, 

 purple- tipped; pod coriaceous, glabrous, stipitate, the stipe 8 mm. long, the body ellipsoid, 

 about 3 cm. long, 12 mm. thick and 8 mm. wide, cross-reticulate, acute at each end. 



Type locality: Snake River Canon, near Ballard's Landing, Oregon. 



Distribution: Eastern Oregon. 



Illustration: M. E. Jones, Rev. Astrag. pi. 38, f. 123. 



4. Hesperonix scaphoides (M. E. Jones) Rydberg. 



Astragalus arrectus scaphoides M. E. Jones. Proc. Calif. Acad. II. 5: 664. 1895. 

 Astragalus scaphioides [err. I Rydb. Mem. N. Y. Bot. Gard. 1: 241. 1900. 

 Astragalus scaphoides M. E. Jones. Contr. W. Bot. 10: 69. 1902. 

 Phacopsis scaphoides Rydb. Bull. Torrey Club 40: 52. 1913. 



A perennial, with a thick woody root and cespitose caudex; stems many, 3-,5 dm. high, 

 erect, angled and slightly sulcate, sparingly strigose; leaves ascending, 8-10 cm. long, the 

 rachis sulcate, strigose; stipules deltoid, acuminate, strigose, 3-5 mm. long; leaflets elliptic to 

 obovate, 1-1.5 cm. long, 4—7 mm. wide, rounded at the apex, glabrous above, strigose beneath; 

 peduncles 5-10 cm. long, sulcate; racemes 4-8 cm. long; bracts subulate, 3 mm. long, black- 

 hairy; calyx black-hairy, the tube 6-7 mm. long, the teeth subulate, 2 mm. long; corolla 

 unknown; pod leathery, stipitate; stipe 1-1.5 cm. long, slightly curved upwards, the body erect, 

 glabrous, slightly reticulate, oblong, about 2 cm. long, 7 mm. thick and 5 mm. wide, truncate 

 or subcordate at the base, acute at the apex, slightly sulcate on both sutures, somewhat broadly 

 ^-shaped in cross-section. 



Type locality: West of Clark's Canon, Beaverhead County, Montana. 

 Distribution: Montana and Idaho. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 38. 



