546 METASPERMAE OF THE MINNESOTA VALLEY. 



Herb.: Sheldon 1470, Pipestone; Winchell 10, Rich- 

 field; Herrick 165, Minneapolis; Holzinger 128, Winona; Sand- 

 herg 333, Cannon Falls; Herb. Moyer 144, Montevideo. 



Bidens cernna Linn. Spec. 832 (1753). 



Coreopsis hidens Linn. Spec. 908 (1753). 

 Bidens cernna var. elata T. and G. Fl. II, 352 (1841) 

 B. quadriaristata var. dentata Nutt. Trans. Am. Phil. Soc. VII, 

 368 (1841). 



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

 Fl. Can. I, 247; Upham, Fl. Minn. 83; Webb., Fl. Neb. 145; Coult., Fl. 

 Colo. 189; Brew, and Wats., Fl. Calif. I, 357: Forbes and Hems., Fl. Syn. 

 435; Hook., Fl. Gt. Brit. 210; Led., Fl. Ross. II, 517: Nym., Fl. Eur.; 

 Herd., Fl. Eur. Russ. 66; Gov., Fl. Ark. 196; Engl. Hoffmann, Nat. Pflanz. 

 IV, 5, 244; Gray, Syn. Fl. I, 2, 296; Hart, Fl.Scand. I, 2. 

 N. Eur. to Caucasus; N. Asia to China. 

 North America: N. S., N. Br. to Hudson Bay and 

 Saskatchewan to Mont, and Oregon; S. to Va., Mo. and Colo. 

 Minn, valley: Throughout; infrequent; wet places or 

 shaded banks near water's edge. 



Herb. : Sheldon 1515, Lake Benton; Taylor 1154, Glen- 

 wood; Roberts 65, Stewart river; Leiberg 36, Blue Earth Co. 



Bidens eonnata Muhl. Willd. Spec. HI, 1718 (1803). 

 B. tripartita Bigel. Fl. Bost. 2 ed. 294 (1824). 

 B. petiolata Nutt. Journ. Acad. Phil. VII, 99 (1834). 

 B. eonnata var. comosa Gray. Man. 5 cd. 261 (1867). 

 Wats, and Coult., Gray's Man. 6 ed. 284; Mac, Fl. Can. I, 247; Upham, 

 Fl. Minn. 83: Chap., Fl. S. St. 236; Webb., Fl. Neb. 145; Britt., Fl. N. J. 

 147; Gray, Syn. Fl. I, 2, 296. 



North America: N. S., N. Br. to Saskatchewan and 

 Nebr.; S. to 111., Mo., Ga. and Tex. 



Minn, valley: Forest district to Blue Earth Co.; 

 damp places and near streams or pools. 



Herb.: Ballard 712, Waconia; Herrick 164, Minne- 

 apolis; this is the var. pinnata Watson. Sandberg 332, Red 

 Wing. 



Bidens frondosa Linn. Spec. 832 (1753). 

 Wats, and Coult., Gray's Man. 6 ed. 284; Britt., Fl. N. J. 146; Webb., 

 Fl. Neb. 145; Chap., Fl. S. Sts. 236; Mac, Fl. Can. I, 247, 551; Upham, Fl. 

 Minn. 83; Coult., Fl. Colo. 189; Cov., Fl. Ark. 196; Gray, Syn. Fl. I, 2. 

 296; Coult., Fl. Tex, 223. 



North America: N. S., N. Br. to Saskatchewan and 

 Colo. ; S. to Gulf of Mexico, Fla. and Tex. 



Minn, valley: Throughout; frequent; moist shady 

 places or along roads. 



Herb.: Sheldon HH, Lake Benton; Taylor 1082, 



