Part 6, 1929] FABACEAE: GALEGEAE 373 



19. Atelophragma Brandegei (Porter) Rydb. Bull. Torrey Club 

 32:660. 1905. 



Astragalus' Brandegei Porter; Porter & Coult. Syn. Fl. Colo. 24. 1874. 

 Tragacantha Brandegei Kuntze, Rev. Gen. 943. 1891. 



A perennial, with acespitose eaudex; stems decumbent, strigose, 1-2 dm. (rarely 3 dm.) long; 

 leaves ascending, 4— 10 cm. long, the rachis strigose; stipules lanceolate, spreading, 3-4 mm. long; 

 leaflets 7-15, linear, usually conduplicate, 1-2 cm. long, 1-2 mm. wide, glabrous above, strigose 

 beneath; peduncles 5-10 cm. long; racemes 1-5-flowered; bracts lanceolate, 2 mm. long; pedicels 

 2-3 mm. long; calyx strigose, the tube 2 mm. long, turbinate, the teeth lanceolate, 1 mm. long; 

 corolla white, tinged with purple; banner broadly obovate, rather strongly arched below the 

 middle; wings shorter, the blade obliquely obovate, strongly falcate; keel-petals still shorter, 

 the blade broadly lunate; pod subsessile, white-strigose, oblanceolate-ellipsoid, broadest above 

 the middle, about 15 mm. long, 5 mm. wide and thick, nearly round in cross-section, the septum 

 nearly 2 mm. wide; seeds obliquely round-reniform, brown, 2.5 mm. long. 



Type locality: Banks of the Arkansas, near Canon City [Colorado]. 

 Distribution: Colorado. New Mexico, Utah, and Arizona. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 42, f. 144. 



20. Atelophragma Shearii Rydb. Bull. Torrey Club 

 32:660. 1906. 



Astragalus Shearii Rydb. Bull. Torrey Club 31: 562. 1904. 



A perennial, with a horizontal cespitose rootstock; stem slender, strigose, striate, about 

 2 dm. high; leaves 3-5 cm. long, spreading; stipules deltoid, strigose, 2-3 mm. long; leaflets 

 13-19, oblong, obtuse or retuse, 5-8 mm. long, glabrate above, grayish-strigose beneath; 

 peduncles 4—5 cm. long; racemes shorter, 5-10-flowered; bracts subulate, 2-3 mm. long; 

 pedicels 2 mm. long; calyx strigose, partly with black hairs, the tube 4 mm. long, the teeth 

 deltoid, 1 mm. long; corolla reddish-purple, nearly 1 cm. long; banner broadly obovate, strongly 

 arched at the middle; wings slightly shorter, the blade broadly oblong, with a large reflexed 

 auricle; keel-petals much shorter, the blade obliquely obovate, rounded at the apex; pod 

 oblong, 12-14 mm. long, 5 mm. wide, glabrous, reticulate, slightly falcate, subterete, the septum 

 0.5 mm. wide. 



Type locality: Twin Lakes, Colorado. 

 Distribution: Known only from the type locality. 



4. Alpina. Pod distinctly stipitate, turgid, black-hairy, the lower suture sulcate and 

 more curved than the upper, the upper suture acute. Corolla middlesized, purple. 



21. Atelophragma alpinum (L.) Rydb. Bull. Torrey Club 

 55: 130. 1928. 



Astragalus alpinus L. Sp. PI. 760. 1753. 

 Phaca astragalina DC. Astrag. 52. 1802. 



'Colutea astragalina Poir. in Lam. Encyc. Suppl. 1: 561. 1810. 

 Phaca andina Nutt.; T. & G. Fl. N. Am. 1: 345, as synonym. 1838. 

 Astragalus pauciflorus Hook. Lond. Jour Bot. 6: 210. 1847. 

 Tragacantha alpina Kuntze, Rev. Gen. 942. 1891. 

 Astragalus astragalinus Sheldon. Minn. Bot. Stud. 1: 65. 1894. 

 Astragalus giganteus Sheldon, Minn. Bot. Stud. 1: 65, in part. 1894. Not A. gisanleus S. Wats. 



1882. 

 Tium alpinum Rydb. Bull. Torrey Club 32: 659. 1906. 



Phaca alpina Piper, Contr. U. S. Nat. Herb. 11: 371. 1906. Not P. alpina L. 1753. 

 Astragalus andinus M. E. Jones, Rev. Astrag. 137. 1923. 



A perennial, with a slender, creeping, cespitose rootstock; stems slender, decumbent, 1-3 

 dm. high, branched at the base; leaves spreading, 3-10 cm. long; stipules ovate or lanceolate, 

 4-6 mm. long, or the lower deltoid and scarious; leaflets 11-23, oval or elliptic, 5-10 mm. long, 

 3-6 mm. wide, thin, rounded or retuse at the apex, pilose on both sides or glabrate above; 

 peduncles 5-10 cm. long; racemes short and dense, 1-3 cm. long, or in fruit 3-5 cm. long; bracts 

 subulate, black-hairy, 1-2 mm. long; pedicels 1 mm. long; calyx black-hairy, the tube 2-2.5 



