LIST OF HIGHER SEED-PRODUCING PLANTS. 425 
North America. Man., Assiniboia and Saskatchewan 
to Rocky mts.; S. to N. Il, Wisc., Minn., Iowa, Dak., Neb. 
and Kan. 
Minn. valley: Throughout; most abundant S. W. and 
W. prairies. 
HERB.:: Sheldon 606, Waseca; Taylor 178, Janesville; 
Menzel 4, Pipestone City; Herrick 258, Minneapolis; Ankeny 5, 
Stillwater; Roberis 109, White Bear; Kassube 205, Minneapolis; 
Sandberg 470, Red Wing; Herb. Moyer 204, 205, Chippewa Co.; 
Herb. Wickersheim 109, Idlewild, Lincoln Co. 
Asclepias exaltata (Linn.) Muu. Cat. 28 (1813). 
A. syriaca var. exaltata LINN. Spec. ed. 2, 313 (1762). 
A. phytolaccoides PursH, F1, Am. 180 (1814). 
Wats. and Coult., Gray’s Man. 6 ed. 342; Upham,Fl. Minn. 114; Mac., 
Fl. Can. I, 319; Chap., Fl. S. St. 262; Gray, Syn. Fl. IT, 1, 92; Britt., Fi. 
N. J. 169. 
North America: Ont. and N. Eng. to Minn,; S. to N. 
J. and Ga.; W. to Ark. 
Minn. valley: Forest district; moist woods and thickets 
Hers.: Ballard 471, Prior’s lake, Scott Co.; Sheldon 
617, Waseca; Sheldon 617a, Wilton, Waseca Co.; Ballard 205, 
Jordan, Scott Co.; Herrick 252, Minneapolis; Sandberg 469, 
Red Wing. 
Asclepias obtusifolia Micux. FJ. N. Am. I, 113 (1803). 
A, purpurascens WALT. Fl, Car. 103 (1788). 
Wats. and Coult., Gray’s Man. 6 ed. 341; Britt., Fl. N. J. 170; Webb., 
Fl. Neb. 141; Upham, F). Minn. 115; Chap., Fl. 8. Sts. 364; Coult., Fl. 
Colo. 239; Cov., Fl. Ark. 203; Gray, Syn. Fl. II, 1, 91 and Syn. Suppl. IT, 
401; Coult., Fl. Tex. 266. 
North America: Minn. and Dak. to Colo., Neb., Ark. 
and Tex.; E. across continent to N. Eng., N. J., N. Car. and 
Fla. 
Minn. valley: Reported from 8S. E. edge; doubtful 
sandy fields or woods. 
Asclepias sullivantii ENGELM. Gray Man. 1 ed. 366 (1848). 
Wats. and Coult., Gray’s Man. 6 ed.341; Webb., Fl. Neb. 141; Upham, 
Fl. Minn. 114; Gray, Syn. Fl. II, 1, 91. 
North America: Minn. and Dak. to Neb., Kan. and 
Ohio. 
Minn. valley: Forest district and W. to Pommes des 
Terres, at least; rich woods and banks of streams. 
Hers.: Taylor 580, Minnesota lake; MacI and Sheld. 
45, Brainerd. 
