Part 7, 1929] FABACEAE: GALEGEAE 407 



falcate, the blade obliquely oblaneeolate, obtuse; blades of the keel-petals broadly lunate, 

 rounded and purple at the apex; pod broadly ovoid, pubescent, usually somewhat mottled, 

 2-2.5 cm. long, 12-15 mm. thick, acuminate. 



Type locality: Mountains near Sonora Pass, California, 



Distribution: Ridges at an altitude of 1500-2000 m., from southwestern Montana and Idaho 

 to southern Nevada and eastern California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 42, f. 145. 



2. Cystium Fremontii (A. Gray) Rydberg. 



Astragalus Fremontii A. Gray, in Torr. Pacif. R. R. Rep. 4: 80. 1857. 

 Astragalus lentiginosus Fremontii S. Wats. Bot. King's Expl. 66. 1871. 

 Astragalus Coulteri Fremontii M. E. Jones, Proc. Calif. Acad. II. 5: 669. 1895. 



An annual, or a perennial according to the original description; stem 3-5 dm. high, 

 finely strigose, thick; leaves 3-7 cm. long, ascending; stipules deltoid, 3-4 mm. long, deciduous; 

 leaflets 9-13, obovate or oval, retuse, silky-strigose with rather long hairs, 10-15 mm. long, 

 6-8 mm. wide; peduncles erect, 5-7 cm. long; racemes about 5 cm. long, lax; bracts lance-subu- 

 late, 1-2 mm. long; pedicels very short; calyx dark-hairy, the tube 3 mm. long, the teeth 

 deltoid, less than 1 mm. long; corolla about 1 cm. long, purple; banner obovate, bent at an 

 angle of 60° or more; wings slightly shorter, the blades oblong, slightly curved, with a large 

 rounded basal auricle; keel-petals shorter, the blade obovate-lunate, rounded at the apex; pod 

 rounded-ovoid, about 2 cm. long and 1.5 cm. thick, glabrous, papery, many-seeded. 



Type locality: Banks of Rio Virgin, Arizona or southern Utah. 

 Distribution: Known only from the type locality. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 25. 



3. Cystium Kennedyi Rydberg, sp. nov. 



A perennial, with a taproot; stems 3-5 dm. high, decumbent at the base, canescent with 

 short kinky hairs; leaves ascending, 8-12 cm. long; stipules triangular-deltoid, spreading, 

 deciduous; leaflets 11-21, elliptic to obovate, 1-2 cm. long, 5-10 mm. wide, obtuse to retuse, 

 short-pubescent on both sides with kinky hairs; peduncles 5-10 cm. long, erect; racemes 

 elongate, lax, 5-15 cm. long; pedicels short; bracts subulate, 3-4 mm. long; calyx dark-hairy, 

 the tube 5 mm. long, the teeth subulate, 2-3 mm. long; corolla purple, about 15 mm. long; 

 banner elongate-obovate, bent at an angle of about 45°; wings slightly arcuate, shorter, the 

 blade oblong, with a large basal auricle; keel-petals more arcuate and rounded at the apex; 

 pod papery, glabrous, ovoid, long-acuminate, 2.5-3 cm. long, 1.5 cm. thick. 



Type collected in the Carson Sink Region, October, 1907, Kennedy 1691 (herb. N. Y. Bot. 

 Gard.). 



Distribution: Nevada. 



4. Cystium yuccanum (M. E. Jones) Rydberg, sp. nov. 



Astragalus lentiginosus yuccanus M. E. Jones, Contr. W. Bot. 8: 3. 1898. 



Probably a winter annual; stem 6-10 dm. high, rather sparingly strigose or glabrate 

 below; leaves 1-1.5 dm. long; stipules deltoid, about 5 mm. long; leaflets 13-25, short-peti- 

 oluled, oval or obovate, 1-2 cm. long, 8-12 mm. wide, obtuse to retuse at the apex, sparingly 

 strigose beneath, at least on the midrib, or glabrate in age, glabrous above; peduncles about 

 1 dm. long, strict; racemes lax, of about the same length; bracts lanceolate; pedicels about 2 

 mm. long; calyx sparingly pubescent, the tube 4 mm. long, the teeth subulate, slightly more 

 than 1 mm. long; corolla white, 12-13 mm. long; banner obovate; blade of the wings obliquely 

 oblong-oblanceolate, with a rounded auricle; keel-petals broader, with a rounded apex; pod 

 glabrous, ovoid, 2-2.5 cm. long, 15 mm. thick, papery, short-acuminate, slightly upturned at 

 the apex. 



Type locality: Yucca, Arizona. 



Distribution: Known only from the type locality. 



Illustration: M. E. Jones, Rev. Astrag. pi. 26. 



