422 METASPERMAE OF THE MINNESOTA VALLEY. 



King Exp. 282; Roth., Wheel. Exp. 186; Gov., 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; Sheldoji 975, Sleepy Eye; Sheldon 388, Madison 

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

 Minneapolis; Kassuhe 203, Minneapolis; Bailey 214, Vermilion 

 lake; Sandberg 4-67, Cannon Palls; Oestlund 150, Hennepin Co.; 

 Herrick 250, Minnetonka; Herh. 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; Roth., 

 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. ; Kassuhe 202, 

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

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

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



LXXXVIII. ASCLEPIADACEAE. Milkweed 

 Family. 



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

 728 (1876); Baillon, Hist. PL 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. 



