LIST OF HIGHER SEED-PRODUCING PLANTS. 545 



Exp. 164; Cov., Fl. Ark. 196; Engl. Hoffmann, Nat. Pflanz. IV, 5, 243; 

 Gray, Syn. Fl. I, 2, 291; Coult., Fl. Tex. 222. 



North America: Saskatchewan and lat. 49 N. to Ark. 

 and Tex. ; W. to Colo, and Arizona; E. to La. 



Minn, valley: Reported from moist prairies of S. W. 

 and W. districts. 



BIDENS LINN. Gen. 641 (1737). 



Pluriclens and Edwardsia NECK. Elem. I, 86, 87 (1790). 

 Kerneria MOENCH, Meth. 595 (1794). 

 Ceratocephalus VAILL. ex DC. Prodr. V, 594 (1836). 

 Delucia DC. Prodr. V, 633 (1836). 

 Adenolepis LESS. Linn. VI, 510 (1832). 



Baillon, Hist. PL VIII, 221; Benth. and Hook., Gen. PL II, 387; Du- 

 rand, Ind. Gen. Phan. 212: Engler and Prantl, Nat. Pflanz. IV, 5, 214 

 (Hoffmann) 



Living species: 60-90; all temperate and warmer reg- 

 ions, especially in America; Russia, 3; Europe, 4; Russian Eu- 

 rope, 3; North America, 15; E. Sts., 6; Canada, 6; Rocky mts., 

 5; S. Sts., 5; California, 2; PI. Wheel., 3; W. Tex., 5. 



Bidens beckii TORR. Spreng. Neu. Entd. II, 135 (1824). 



Wats, and Coult., Gray's Man. 6 ed. 285; Britt., Fl. N. J. 147; Upham, 

 Fl. Minn. 83; Mac., Fl. Can. I, 247; Engl. Hoffmann, Nat. Pflanz. IV, 5, 

 245; Gray, Syn. Fl. I, 2, 298. 



North America: St. Lawrence, Q., Ont. to Man., Red 

 valley and Porcupine mts.; S. to E. Mass, and N. J., and to 

 Minn, and Mo. 



Minn, valley: N. E. district; aquatic, in ponds, lakes 

 and sluggish streams 



HERB.: Holtz 2, Minneapolis; Herrick 166, Minneap- 

 olis; Herrick 167, Minneapolis; Bailey 541, Long lake. 



Bidens laevis (LiNN.) B. S. P. Cat. N. Y. (1888). 



Helianthus laevis LINN. Spec. 906 (1753). 

 Coreopsis bidens and perpoliata? WALT. Fl. Car. 215 (1788). 

 Bidens chrysanthemoides MICHX. Fl. N. Am. II, 136 (1803). 

 B. helianthoides HBK. Nov. Gen. et. Spec. IV, 230 (1820). 

 B. quadriaristata DC. Prodr. V, 593 (1836). 



Wats, and Coult., Gray's Man. 6 ed. 285; Britt., Fl. N. J. 147; Webb., 

 Fl. Neb. 146; Upham, Fl. Minn. 83; Chap., Fl. S. St. 237; Coult., Fl. Colo. 

 190; Brew, and Wats., Fl. Calif. I, 357; Mac., Fl. Can. I, 247; Cov., Fl. Ark. 

 196; Gray. Syn. Fl. I, 2, 296; Coult., Fl. Tex. 223. 



North America: N. S., N. Br., Q., Ont. to Man. and 

 Calif. ; S. to Pla. and Mex. 



Minn, valley: Throughout; swamps and shaded wet 

 banks of streams or by springs. 



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