452 NORTH AMERICAN FLORA [Volume 24 



long, similar to that of A. goniatus; mature pod not known, but the ovary long-hairy and the 



pod probably similar to that of said species. 



Type locality: Fertile plains of the Red River, Manitoba. 

 Distribution: Montana and Manitoba. 



4. Chaetodontes. Plants perennial, with a cespitose caudex; stems leafy; leaves and stem 

 villous; racemes dense, short, spike-like or head-like; calyx-tube campanulate, the teeth more 

 than half as long as the tube; corolla white or purple, the banner rather strongly arched; pod 

 short, few-seeded, almost woody, ovoid, deeply sulcate on the lower suture, cordate in cross- 

 section. 



32. Astragalus Spaldingii A. Gray, Proc. Am. Acad. 6: 524. 1865. 



Astragalus chaetodon Torr.; A. Grav, Proc. Am. Acad. 6: 194. 1864. Not A. chaetodon Bunge. 



1851. 

 Tragacanlha Spaldingii Kuntze, Rev. Gen. 948. 1891. 

 Phaca Spaldingii Piper, Contr. U. S. Nat. Herb. 11:370. 1906. 



A perennial, with a cespitose caudex; stems numerous, ascending, slender, 1-3 dm. high, 

 angled, villous; leaves ascending, 5-10 cm. long; stipules linear-lanceolate, attenuate, 5-8 mm. 

 long; leaflets 15-25, oblong to lance-linear, acute, villous on both sides, 5-10 mm. long, 2-3 

 mm. wide; peduncles 5-10 cm. long; racemes at first dense and short, 2-3 cm. long, in age 

 elongate and lax, up to 7 cm. long; bracts linear-lanceolate, 3-4 mm. long; flowers ascending, 

 subsessile; calyx densely white-villous, the tube 4 mm. long, 3 mm. broad, the teeth subulate, 

 3 mm. long; corolla white, 12-14 mm. long; banner obovate, deeply retuse; wings shorter, the 

 blade oblong, falcate, equaling the claw, with a reflexed auricle; keel-petals smaller, the blade 

 lunate, shorter than the claw, obtuse and purple-tipped; pod ovoid, villous, 6-7 mm. long, 

 3.5 mm. wide and thick, suborbicular-cordate in cross-section ; seeds 2-4, reniform, 2.5 mm. long. 



Type locality: Plains of Kooskooskie River, Washington Territory [now Idaho]. 

 Distribution: Washington, Oregon, and western Idaho. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 41, f. 133. 



33. Astragalus Austinae A. Gray, Bot. Calif. 1: 156. 1876. 



Tragacanlha Austinae Kuntze, Rev. Gen. 943. 1891. 



A perennial, with a cespitose woody caudex; stems numerous, ascending, less than 1 dm. 

 high, densely white-villous; leaves 2-4 cm. long, ascending; stipules canescent, broadly ovate 

 or deltoid, 3-5 mm. long; leaflets 7-11, elliptic or oblanceolate, mostly acute, 4-6 mm. long, 

 2-3 mm. wide, densely canescent with appressed hairs; peduncles 2-5 cm. long; racemes dense, 

 about 2 cm. long; bracts lanceolate, 3-5 mm. long; flowers subsessile, spreading; calyx villous, 

 the tube 5 mm: long and 3 mm. broad, the teeth subulate, 3 mm. long; corolla purple, about 

 1 cm. long; banner obovate, villous without; wings slightly shorter, the blade oblanceolate, 

 rather strongly falcate, as long as the claw, with an acute basal auricle; keel-petals shorter, 

 the blade shorter than the claw, broadly lunate, almost semiorbicular; pod densely villous, 

 about 7 mm. long, 3 mm. wide and thick, ovoid, slightly sulcate on the lower suture. 



Type locality: Mount Stanford (Castle Peak). Nevada County, California. 

 Distribution : Sierra Nevada, California and western Nevada. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 41, f. 132. 



5. Lentiformes. Plant perennial, with a cespitose caudex; stems elongate, leafy; 

 leaves green, more or less pubescent; racemes lax; calyx-tube campanulate, the teeth subulate; 

 corolla small, white or ochroleucous, the banner strongly arched; pod reflexed, rather thin- 

 walled, ovoid or lance-ovoid in outline, more or less compressed, few-seeded, the sulcus on 

 the lower suture very narrow and inconspicuous. 



34. Astragalus Lyallii A. Gray, Proc. Am. Acad. 6: 195. 1864. 



Tragacanlha Lyallii Kuntze, Rev. Gen. 246. 1891. 



Phaca Lyallii Piper, Contr. U. S. Nat. Herb. 11: 370. 1906. 



Astragalus Lyallii caricinus M. E. Jones, Rev. Astrag. 174. 1923. 



A perennial, with a cespitose woody caudex; stems numerous, 2-5 dm. high, villous, terete, 

 flexuose; leaves ascending, 5-10 cm. long; stipules subulate, 3-5 mm. long; leaflets 13-17, 



