342 NORTH AMERICAN FLORA [Volume; 24 



1-5-flowered; bracts subulate, 1 mm. long; calyx-tube grayish- strigose, 3 mm. long, the lobes 

 lance-subulate, 1.5 mm. long; corolla ochroleucous, 8-9 mm. long, the keel tipped with purple; 

 banner obovate, gradually tapering below; wings somewhat shorter, the blade lunate, longer 

 than the claw, with a rounded basal auricle; keel-petals as long as the wings, similar but 

 broader and acutish; pod glabrous, mottled, the stipe 3-4 mm. long, the body ovate-ellipsoid, 

 3-3.5 cm. long and about 2 cm. wide; seeds obliquely reniform, 3 mm. long, 2 mm. broad. 



Type Locality: Upper Louisiana [now South Dakota] . 



Distribution: Western Nebraska ond South Dokota to Idaho and New Mexico. 

 Illustrations: M. E. Jones, Rev. Astrag. pi. 12; Britt & Brown, 111. Fl. /. 2150; ed. 2. /. 2555; 

 Fl. Neb. 22: pi. 11, f. 79-81. 



25. Phaca picta A. Gray, Mem. Am. Acad. II. 4: 37. 1849. 



Astragalus pictus A. Gray, Proc. Am. Acad. 6: 214. 1864. Not A. pictus Steud. 1840. 



Astragalus pictus foliolosus A. Gray, Proc. Am. Acad. 6: 215. 1864. 



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



Astragalus pictus angustus M. E. Jones, Zoe 4: 37. 1893. 



Astragalus ceramicus Sheldon, Minn. Bot. Stud. 1: 19. 1894. 



Astragalus ceramicus Jonesii Sheldon, Minn. Bot. Stud. 1: 19. 1894. 



Astragalus foliolosus Sheldon, Minn. Bot. Stud. 1: 138. 1894. 



Astragalus angustus M. E. Jones, Proc. Calif. Acad. II. 5: 634. 1895. 



Astragalus angustus pictus M. E. Jones, Proc. Calif. Acad. II. 5: 635. 1895. 



Astragalus angustus ceramicus M. E. Jones, Contr. W. Bot. 10: 62. 1902. 



Astragalus pictus magnus M. E. Jones, Rev. Astrag. 109. 1923. 



Perennial, with a creeping rootstock; stems 1-2 dm. long, giayish-canescent, often fiexuose; 

 leaves more or less spreading, 5-10 cm. long; stipules deltoid, more or less connate; leaflets 

 5-11, linear, 1-3 cm. long, canescent, 1-2 mm. wide, the terminal one rarely much longer; 

 peduncles 2-5 cm. long; racemes 5-15-flowered; bracts subulate, 1 mm. long; calyx-tube 

 canescent, 2.5 mm. long, the lobes subulate, 1.5 mm. long; corolla about 7 mm. long, ochro- 

 leucous, the keel tipped with purple, the petals similar to those of P. longifolia; pod glabrous, 

 mottled with brown or purple, the stipe about 3 mm. long, the body broadly ellipsoid, 1.5-2.5 

 cm. long, 10-12 mm. wide; seeds obliquely reniform. 



Type locality: Banks of the Rio del Norte, New Mexico. 

 Distribution: New Mexico, southern Utah, and Arizona. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 12, f. 54 and var. magnus. 



8. Nutantes. Low branched perennials, with elliptic, canescent leaflets. Calyx-lobes 

 subulate. Corolla purple, with a white spot; banner strongly arched at the middle. Pod short- 

 stipitate, the stipe shorter than the calyx, the body broadly ellipsoid, inflated, round in cross- 

 section. 



26. Phaca nutans (M. E. Jones) Rydberg. 



Astragalus nutans M. E. Jones, Rev. Astrag. 108. 1923. 

 Astragalus deserticolus Jepson, Man. Fl. PI. Calif. 565. 1925. 



Perennial, branched at the base, strigose; leaves 4-5 cm. long, ascending; stipules broadly 

 deltoid, 3 mm. long; leaflets 7-13, elliptic, 8-15 mm. long, strigose-canescent on both sides; 

 peduncles 2-4 cm. long; racemes short, 3-7-floweied; bracts lanceolate, 2 mm. long; calyx 

 stiigose, the tube 3 mm. long, the teeth subulate, 2 mm. long; corolla purple, nearly 1 cm. long; 

 banner obovate, arched at the middle at an angle of about 45°, with a white spot, purple- veined; 

 wings slightly shorter, the blade obliquely obovate; keel-petals still shorter and broadly lunate; 

 pod stipitate, strigulose, unspotted, or nearly so, the stipe 2 mm. long, the body rounded 

 ellipsoid, 2-2.5 cm. long, 1.5 cm. wide or more. 



Type locality: Province Mountains, California. 

 Distribution: Known only from the type locality. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 12, f. 53. 



9. Oocarpae. Tall perennials, with strigose or glabrous, linear to elliptic leaflets. Calyx- 

 teeth deltoid, one fourth to one third as long as the tube. Corolla ochroleucous, more than 1 

 cm. long, the banner strongly arched, somewhat reflexed. Pod strongly inflated, large, ellip- 

 soid, round in cross-section. 



