294 METASPERMAE OF THE MINNESOTA VALLEY. 



Baillon, Hist PL I, 466; Benth. and Hook., Gen. PL I, 620; Durand, 

 Ind. Gen. Phan. 113; Engler and Prantl, Nat. Pflanz. 3, III, 34, 35, 36 

 (Focke); Schenck, Palo,eophyt. 666. 



Living species: 300 described; 165 distinct. Boreal 

 and temperate regions of N. hemisphere, tropical mts. and 2 

 sp. in S. hemisphere. Russia, 70; Europe, 67; Russian Europe, 

 43; North America, 52-56; California, 35; E. Sts., 14-15; Can- 

 ada, 30-33; Rocky mts., 16-20; PI. King, 15; PI. Wheel., 14; 

 S. Sts., 3. 



Fossil species: Arctic regions, Tertiary (Heer) Dryas?. 



Potentilla canadensis LINN. Spec. 498 (1753). 

 P. pumila POIR. Enc. Meth. V, 594 (1804). 

 P. sarmentosa WILLD. En urn. 554 (1809). 



Wats, and Coult., Gray's Man. 6 ed. 160; Britt., Fl. N. J. 96; Upham, 

 Fl. Minn. 49; Chap., Fl. S. St. 124; Mac., Fl. Can. I, 141, 518; Cov., Fl. Ark. 

 179; Wats., Bibl. Ind. I, 294. 



North America: N. S., Q., Ont. to L. Huron; S. to N. 

 Eng., N. J., N. Car. and Miss.; W. to Minn., Neb., Kan. and 

 Ark. 



Minn, valley: Throughout; in dry or sandy soil; 

 especially in forest openings. 



HERB.: Bollard 252, Jordan, Scott Co.; Taylor 980, 

 Glenwood; Taylor 570, Minnesota lake; Taylor 797, Glenwood; 

 Bollard 416, New Prague, Scott Co. ; Oc stlund 42, Hennepin 

 Co.; Kassube 70, Minneapolis; Oestlund 43, Hennepin Co.; Her- 

 rick 94, Minneapolis; Herrick 95, Minneapolis; Sandberg 169 ; 

 Cannon Falls. 



Potentilla canadensis LINN. var. simplex (Micnx.) T. and 

 G. PL I, 443 (1838). 



P. simplex MICHX. Fl. N. Am. I, 303 (1803). 

 P. caroliniana Pom. Enc. Meth. V, 595 (1804). 



Wats, and Coult., Gray's Man. 6 ed. 160; Britt., Fl. N. J. 96; Webb., 

 Fl. Neb. 128; Upham, Fl. Minn. 49; Chap., Fl. S. St. 124; Mac., Fl. Can. I, 

 141, 518; Wats., Bibl. Ind. I, 294. 



North America: With type; more common eastward. 

 Minn, valley: Forest district; N. E. and reported to 

 New Ulm; meadows and damp places along streams. 



HERB : Sandberg 170, Chisago Co. ; Manning 3, Lake 

 City. 



Potentilla anserina LINN. Spec. 495 (1753). 



Wats, and Coult., Gray's Man. 6 ed. 160; Britt., Fl. N. J. 96; Upham, 

 Fl. Minn. 50; Coult., Fl. Colo. 86; Trautv., Fl. Sib. 50; Hook., Fl. Gt. 

 Brit. 125; Brew, and Wats., Fl. Calif. I, 180; Mac., Fl. Can. I, 141; Forbes 

 and Hems., Fl. Sin. 240; Led., Fl. Ross, II, 44; Nym., Fl. Eur.; Miyabe, 

 Fl. Kur. 232; Herd., Fl. Eur. Russ. 48; Greene, Fl. Fran. 63; Wats., King 



