426 METASPERMAE OF THE MINNESOTA VALLEY. 



Asclepias syriaca Linn. Spec, ed. 2, 313 (1762). 

 A. cornuti Decn. in DC. Prodr. VIII, 564 (1844). 

 Wats, and Coult., Gray's Man. 6 ed. 341; Britt., Fl- N. J. 169; Webb., 

 Fl. Neb. 141; Chap.,Fl. S. St. 362; Mac, Fl. Can. I, 319; Herd., Fl. Eur. 

 Russ. 86; Nym., Fl. Eur.; Gray, Syn. Fl. II, 1,91 and Syn. Suppl. II, 401. 



Russia in Europe; N. Asia. 



North America: N. Br., Q., Ont. to Saskatchewan; 

 S. to N. Eng., N. J. and N. Car.; W. to Minn., and Neb.— 

 spreading throughout continent. 



Minn, valley: Throughout; rich meadows and edges 

 of thickets or streams. 



Herb. : Ballard 26m, Chaska; Taylor 579, Minnesota 

 lake; Ballard ^58, Jordan, Scott Co.; Sheldon 1552, Lake Ben- 

 ton; EerricJc 251, Minneapolis; Kassuhe 204, Minneapolis; Sand- 

 berg 468, Cannon Falls; Herb. Sheld. 1697, Minneapolis; Herb. 

 Mayer 203, Montevideo. 



Asclepias speciosa Torr. Ann. Lye. N. Y. II, 218 (1834). 



A. douglasii Hook. Fl. Bor.-Am. II, 53 (1840). 



Wats, and Coult., Gray's Man. 6 ed. 341; Webb., Fl. Neb. 141,- Upham, 



Fl. Minn. 114; Brew, and Wats., Fl. Calif. I, 475; Coult., Fl. Colo. 239; 



Mac, Fl. Can. I, 319; II, 341; Roth., Wheel. Exp. 188; Wats., King Exp. 



282; Cov., Fl. Ark. 203; Gray, Syn. Fl. II, 1, 91. 



North America: Man. and Assiniboia to Rocky mts., 

 Brit. Col. and Oregon; S. to Yosemite valley; E. to Utah, 

 Ark., Neb., Minn. 



Minn, valley: Probably throughout; especially S. and 

 W. ; fields and river banks. 



Herb. : Taylor 727, Wells, Faribault Co. ; Eerb. Moyer 

 202, Montevideo. 



Asclepias incariiata Linn. Spec. ed. 2, 314 (1762). 

 A. pulchra Willd. Spec. I, 1207 (1798). 

 A. amoena Brongn. Ann. Sci. Nat. XXIV, t. 13 (1831). 

 Wats, and Coult., Gray's Man. 6 ed. 340; Britt., Fl. N. J. 170; Webb., 

 Fl. Neb. 140; Upham, Fl. Minn. 114; Mac, Fl. Can. I, 318; Chap., Fl. S. 

 St. 363; Cov., Fl. Ark. 203; Gray, Syn. Fl. II, 1, 90; Coult., Fl. Tex. 265 

 in var. 



North America: N. Br., Q., Ont. to Saskatchewan and 

 S. Man.; S. to N. J., N. Car. and Ga.; W. to Dak., Neb., Ark., 

 La., Tex. in var. 



Minn, valley: Throughout; edges of swamps and 

 marshes. 



Herb. : Ballard 853, Patterson lake. Carver Co. ; 

 Taylor 568, Minnesota lake; Ballard 757, Waconia; Taylor 777, 

 Glenwood; Sheldon tf 45, Waseca; Holzinger 188, Winona Co.; 

 Sandberg 471, Goodhue Co.; Sandbercj 472, Cannon Falls; Her- 



