374 NORTH AMERICAN FLORA [Volume 24 



mm. long, the teeth lanceolate, 1 mm. long; corolla purple or lilac, with purple keel; banner 

 7-10 mm. long, broadly obovate, retuse; wings shorter, the blade oblong, falcate, with a long 

 reflexed auricle; keel-petals fully as long, the blade obliquely lunate, more curved towards the 

 blunt dark tip; pod black-hairy, stipitate, the stipe about 2 mm. long, the body about 1 cm. long, 

 4 mm. wide, sulcate on the lower suture, the septum 0.5 mm. wide; seeds 4, obliquely reniform, 

 2.5 mm. long, brown. 



Type locality: Lapland. 



Distribution: Boreal, subarctic, and alpine America, Europe, and Asia, extending south in the 

 Rockies to Colorado. 



Illustrations: Bot. Cab. pi. 429; M. E. Jones, Rev. Astrag. pi. 28, f. 91; L. Fl. Lapp. /. 9; 

 Wahlenb. Fl. Lapp./. 19; Fl. Dan. pi. 51; Engl. Bot. pi. 2717; Sv. Bot. pi. 679: Pall. Sp. Astrag. pi. 

 32, 33; Reichenb. Ic. Fl. Germ. 22: pi. 2197. f. 12-21; Fl. Deuts. ed. 5. pi. 2428; Coste. Fl. Fr. /. 

 976; Britt. & Brown, 111. Fl. /. 2147; ed. 2,/. 2543. 



22. Atelophragma labradoricum (DC.) Rydb. Bull. Torrey Club 

 55: 131. 1928. 



Astragalus secundus Michx. Fl. Bor. Am. 2: 66. 1803. Not .4. secundus DC. 1802. 



Astragalus labradoricus DC. Prodr. 2: 287. 1825. 



Astragalus alpinus Brunetianus Fernald, Rhodora 10: 51. 1908. 



A perennial, with a creeping cespitose rootstock; stems 2-5 dm. high, decumbent at the 

 base, striate, glabrous or nearly so; leaves 7-15 cm. long; stipules deltoid or lanceolate, green, 

 4-6 cm. long; leaflets 15-29, oblong, obtuse or acute, 8-20 mm. long, 2-10 mm. wide, sparingly 

 appressed-pilose, or glabrate above; peduncles about 1 dm. long; racemes dense, 1—4 cm. long; 

 bracts lanceolate, 2 mm. long; pedicels about 1 mm. long; calyx black-hairy, the tube 2 mm. long, 

 the teeth lanceolate, fully 1 mm. long; corolla lilac, 10-12 mm. long; banner broadly obovate, 

 retuse, strongly arched at the middle; wings shorter, the blade oblong, slightly falcate, with a 

 long reflexed auricle ; keel-petals longer than the wings, the blade obliquely lunate, broader and 

 more curved towards the obtuse purple apex; pods sparingly strigulose with black hairs or 

 black and white hairs mixed, otherwise greenish, the stipe 4 mm. long, the body lance-oblong, 

 straight or slightly concave on the upper suture, acute at each end, 12-15 mm. long, sulcate on 

 the lower suture, the septum fully 0.5 mm. wide; seeds 4, obliquely reniform, 2.5 mm. long, 

 light-brown. 



Type locality: Labrador. 



Distribution: Labrador to Newfoundland. New Hampshire, and Quebec. 



5. Williamsiana. Pod subsessile, turgid, glabrous, ascending, the sutures equally curved, 

 the lower slightly sulcate. Corolla rather large, ochroleucous. 



23. Atelophragma Williamsii Rydb. Bull. Torrey Club 

 55: 132. 1928. 



Astragalus Williamsii Rydb. Bull. N. Y. Bot. Gard. 2: 175. 1901. 

 Astragalus Gormaui Wight; M. E. Jones, Rev. Astrag. 132. 1923. 



A perennial, with a cespitose caudex; stems ascending or erect, 2-4 dm. high, more or less 

 4-angled, glabrous, light-green, in age straw-colored; leaves 5-10 cm. long, ascending; stipules 

 ovate or lanceolate, 3-6 mm. long, free; leaflets 9-11, oval to linear, 1.5-3.5 cm. long, 4-12 mm. 

 wide, obtuse, or the broader ones retuse, perfectly glabrous; peduncles 1-1.5 dm. long; racemes 

 at first short, in fruit about 1 dm. long; bracts oblong, obtuse, straw-colored, 3 mm. long; 

 pedicels 1-2 mm. long; calyx black-hairy, the tube about 3 mm. long, the teeth less than 1 mm. 

 long, deltoid, obtuse; corolla ochroleucous, with a purplish-tipped keel; banner about 1 cm. long, 

 narrowly obovate, slightly arched, retuse at the apex; wings shorter, the blade longer than the 

 claw, with a long reflexed auricle; keel-petals still shorter, the blade obliquely obovate, strongly- 

 arched and rounded at the apex; pod erect, subsessile, the body 10-14 mm. long, 4 mm. wide, 

 nearly terete, strigulose with black and white hairs or in age glabrate, deeply sulcate on the 

 lower suture, the septum about 1 mm. wide, becoming narrower upwards and extending only- 

 half the length of the pod; seeds obliquely reniform, brownish-black. 



Type locality: Big Salmon, Yukon. 



Distribution: Yukon and Alaska. 



Illustration: M. E. Jones, Rev. Astrag. pi. 26, f. S4. 



