422 METASPERMAE OF THE MINNESOTA VALLEY. 



King Exp. 282; Roth., Wheel. Exp. 186; Cov., Fl. Ark. 203; Gray, Syn. Fl. 

 II, 1, 83; Coult., Fl. Tex. 262. 



North America: Same range as A. androsaemifolium; 

 extends also into S. Calif, and E. to Fla. 



Minn, valley: Throughout; rich woods, thickets, river 

 banks and shores; edges of marshes. 



HERB. : Taylor 337, Janesville; Ballard 93, Shakopee; 

 Taylor 583, Minnesota Lake; Taylor 1025, Glenwood; Sheldon 

 1532, Lake Benton; Ballard 507, Prior's lake, Scott Co. ; Taylor 

 752, Glenwood; Sheldon 975, Sleepy Eye; Sheldon 388, Madison 

 Lake; Sheldon 332, Smith's Mills, Blue Earth Co.; Herrick 249, 

 Minneapolis; Kassube 203, Minneapolis; Bailey 214, Vermilion 

 lake; Sandberg 467, Cannon Falls; Oestlund 150, Hennepin Co.; 

 Herrick 250, Minnetonka; Herb. Moyer 201, Chippewa river, 

 near Montevideo. 



Apocynum androsaemifolium LINN. Spec. 213 (1753). 



A. androsaemifolium and var. incanum A. DC. Prodr. VIII. 412 



(1844). 



Wats, and Coult., Gray's Man. 6 ed. 338; Britt., Fl. N. J. 168; Upham, 

 Fl. Minn. 113; Webb., Fl. Neb. 140; Mac., Fl. Can. I, 317, 565; Coult., Fl. 

 Colo. 237; Chap., Fl. S. St. 359; Brew, and Wats., Fl. Calif. I, 473; Koth., 

 Wheel. Exp. 186; Wats., King Exp. 282; Cov., Fl. Ark. 203; Gray, Syn. Fl. 

 II, 1, 82; Coult., Fl. Tex. 263. 



North America: Anticosti and Atl. coast to Pac. and 

 Brit. Col.; S. to N. Eng., N. J. and N. Car.; W. to Sierras and 

 N. Mexico. 



Minn, valley: Throughout; rich woods and thickets; 

 banks and shores. 



HERB.: Ballard 738, Waconia; Taylor 989, Glenwood; 

 Sheldon 425, Madison Lake; Ballard 852, Patterson lake, Car- 

 ver Co. ; Ballard 91, Chaska; Taylor 328, Janesville; Herrick 

 248, St. Louis river; Oestlund 149, Ramsey Co. ; Kassube 202, 

 Minneapolis; Bailey 183, Vermilion lake; Bailey 131, Vermilion 

 lake; Sandberg 466, Goodhue Co.; Herb. Sheld. 1692, Minneap- 

 olis; 1731, Ramsey Co.; Herb. Moyer 200, Montevideo. 



LXXXVIII. ASCLEPIADACEAE. Milkweed 

 Family. 



Endlicher, Gen. PL 588 (1836-40); Bentham and Hooker, Gen. Plant. II, 

 728 (1876); Baillon, Hist. PI. X, 221 (1891). 



Genera: 190 (Baillon); 146 (B. and H.); tropical 

 regions; a few in temperate zones, especially in N. hemisphere 

 and S. Africa; in the latter region the development is especially 

 abundant. 



Species: 1500 ; 1-2 fossil in recent rocks. 



