LIST OF HIGHER SEED-PRODUCING PLANTS. 249 



Prantl, Nat. Pflanz. 3, II, 66; Durand, Ind. Gen. Plian. 1; O. Kuntze, Bev. 

 Gen. PI. I, 4; Gray, III. Gen. I, 23. 



Living species: 76 ±; 50 (B. and H.); 70 (Durand); 

 Europe; Asia; Africa; N. and S. America; extra- tropical. 

 Russia, 28; Europe, 26; European Russia, 12; North America, 

 14-16; Canada, 9; S. Sts., 6; E. Sts., 4; W. Tex.; 3; Rocky 

 mts., 5; Calif., 4; PL Wheel., 2; PI. King, 4. 



Thalictrura piirpurascens Linn. Spec. 546 (1753). 



T. rugosum Ait. Hort. Kew. 2, 262? (1811). 



T. puhescens Pursh, F1. Am. I, 388 (1814). 



T. revolutum DC. Syst. I, 173 (1818). 



T. cornuti T. and G. Fl. I, 38 (1838). 

 Wats, and Coult., Gray's Man. 6 ed. 39; Britt., Fl. N. J. 35; Webb., Fl. 

 Neb. 117; Upham, Fl. Minn. 18; Mac, Fl. Can. I, 14, 479; II, 298; Cov., 

 Fl. Ark. 162; Coult., Fl. Tex. 7; Wats., Bibl. Ind. I, 26. 



North America: N. S., Anticosti, Q., Ont. to N. Eng., 

 N. J., Md.; W. to Minn., Dak., Neb., Mo. and Ark., W. Tex. 



Minn, valley: Throughout in forest region and on 

 wooded banks, with T. dioicum; rather more abundant, espec- 

 ially westward. This species has been mistaken for T. poly- 

 gam um. 



Herb.: Sheldon 1299, Lake Benton; Ballard 373, 

 Helena, Scott Co. ; Ballard 162, Chaska; Taylor 331, Janes- 

 ville; Sheldon 767, Sleepy Eye; Taylor 571, Minnesota lake; 

 Taylor 843, Glenwood; Taylor 1721, Janesville; Sheldon 968, 

 Sleepy Eye; Herrick 6, Minneapolis; Sandherg 18, Cannon Palls; 

 Gedge 1, Glyndon; Herrick 7, Minneapolis; Bailey 460, Agate 

 Bay; Arthur 68, Vermilion lake; Bailey 448, Mud river; Her'b 

 Sheld. 1735, Minneapolis; Herb. Moyer 7, Montevideo. 



Thalictrum dioicum Linn. Spec. 545 (1753). 



T. laevigatum MiCHX. Fl. N. Am. I, 322 (1803). 

 Wats, and Coult., Gray's Man. 6 ed. 39; Britt., Fl. N. J. 35; Chap., 

 Fl. S. St. 5; Upham, Fl. Minn. 18; Mac, Fl. Can. I, 14, 479; Engl. Prantl, 

 Nat. Pflanz. Ill, 2, 66; Wats., Bibl. Ind. I, 25. 



North America: N. Br., Anticosti and N. S. to Pac. ; 

 N. to lat. 67°; S. to Minn., Ohio, and in Appallachians to N. 

 Car. 



Minn, valley: Forest region, in dry localities, 

 throughout; wooded banks and openings. 



Herb. : Sheldon 237, Turtle lake, Le Sueur Co. ; Shel- 

 don 56», Elysian; Taylor 55, Elysian; Oestlund 3, Ramsey Co.; 

 Sandherg 15, Red Wing; Sandherg 16, Vasa; Sandherg 17, Can- 

 non Falls; Herb. Sheld. 1824, Hennepin Co.; Herb. Moijer 6, 

 Montevideo. 



