372 NORTH AMERICAN FLORA [Volume 24 



Astragalus minor M. E. Jones, Contr. W. Bot. 10: 64. 1902. 



Astragalus curtijlorus "Rydberg" (erroneously); M. E. Jones, Contr. W. Bot. 10: 64. 1902. 



Astragalus eucosmits B. L. Robinson, Rhodora 10: 33. 1908. 



A perennial, with a cespitose rootstoek or caudex; stems 3-6 dm. high, striate, glabrous or 

 sparingly hairy; leaves 5-10 cm. long, ascending; stipules green, spreading, sparingly pubescent, 

 3-5 mm. long; leaflets 13-15, oblong or elliptic, 1-2.5 cm. long, 3-7 mm. wide, obtuse or rounded 

 at the apex, glabrous above, strigose and often paler beneath; peduncles 7-15 cm. long; racemes 

 4-10 cm. long, in fruit even 15 cm. long and often secund; bracts subulate, 2-3 mm. long; 

 pedicels 2-3 mm. long; calyx strigose with black, or with mixed white and black hairs, the tube 

 oblique, 2.5-3 mm. long, 2 mm. broad, the teeth lance-subulate, 1 mm. long; corolla usually 

 dark-purple; banner 8 mm. long, obovate, emarginate, moderately arched at the middle; 

 wings shorter, the blade elliptic-oblong, slightly falcate, with a long reflexed auricle; keel- 

 petals still shorter, the blade obliquely obovate, with a smaller auricle; pod subsessile, reflexed, 

 obliquely elliptic, less curved on the lower suture, black-hairy or rarely white-hairy, 10-12 mm. 

 long, 4-5 mm. wide, the cross-section elliptic; seeds olive-brown, obliquely round-reniform, 2 

 mm. long. 



Type locality: Prairies of the Rocky Mountains, Canada. 



Distribution: Labrador to Maine. British Columbia, and Alaska, and in the Rockies south to 

 Colorado. 



Illustrations: M. E. Jones, Rev. Astrag. pi. 26, f. 85; Britt. & Brown, 111. Fl. /. 2144; ed. 2. 

 /. 2549; Clements, Rocky Mt. Fl. pi. 29. f. 18. 



17. Atelophragma alpiniforme Rydb. Bull. Torrey Club 

 55: 129. 1928. 



A perennial, with a cespitose rootstoek; stems several, slender, erect, 2-3 dm. high, 

 glabrous; leaves 5-7 cm. long, ascending or spreading; stipules ovate or suborbicular, more or 

 less clasping, 3-4 mm. long, the lower scarious; leaflets 11-15, rounded-oval or suborbicular, 

 5-10 mm. long, 3-8 mm. wide, glabrous on both sides; peduncles 6-10 mm. long, erect; racemes 

 2—3 cm. long, in fruit 5-7 cm. long; bracts ovate, 1-2 mm. long; calyx sparingly black-hairy, 

 the tube 3 mm. long, the teeth lanceolate, 1 mm. long; corolla bluish-purple, 8 mm. long; 

 banner broadly obovate, retuse at the apex; wings somewhat shorter, the blade oblong, slightly 

 falcate; keel-petals still shorter, the blade obovate-lunate, rounded at the strongly arched 

 summit; pod black-hairy with short hairs, obovoid, inflated, 10-12 mm. long, 6-7 mm. wide, 

 the stipe about 15 mm. long. 



Type locality: Hurricane Creek, Wallawa Mountains, Oregon. 

 Distribution: Known only from the type locality. 



18. Atelophragma atratum Rydberg, sp. nov. 



A cespitose perennial; stems about 2 dm. high, striate, glabrous; leaves 3-4 cm. long, 

 ascending; stipules deltoid, 5 mm. long; leaflets 9-13, oval or obovate, 1-1.5 cm. long, 4-8 mm. 

 wide, glabrous above, sparingly villous beneath; peduncles 10-12 cm. long; racemes short and 

 dense, 2-3 cm. long; bracts subulate, 5 mm. long, black-hairy; calyx densely black -hairy, the 

 tube campanulate, 3 mm. long, the teeth obtuse, 1 mm. long, the lowest one a little longer; 

 corolla dark-purple, about 8 mm. long; banner obovate, moderately arched; wings slightly 

 shorter, the blade obliquely oblanceolate, with a large basal auricle; keel-petals broadly lunate, 

 rounded at the apex; pod subsessile, 6-7 mm. long, rounded-ellipsoid, abruptly acute, densely 

 villous with short black hairs, 4-5-seeded, the septum about 0.5 mm. wide, the cross-section 

 nearly round; seeds brown, obliquely reniform, 2 mm. long. 



Type collected August 22, 1896, on Herchel Island, Yukon, Alvin Seale (herb. Stanford 



ty): 

 Distribution: Yukon and Alaska. 



