242 METASPERMAE OF THE MINNESOTA VALLEY. 
Living species: 250+; 160 (B. and H.); 200 (Durand); 
cosmopolitan, but richest in northern, extra-tropical regions; 
Russia, 70; Europe, 91; European Russia, 87; North America, 
60+; Canada, 42-47; Calif., 20-24; E. Sts, 18; Rocky mts., 22; 
S. Sts., 15; W. Tex., 8; Pl. Wheel., 18; Pl. King, 20. 
Fossil species: 1; Tertiary of Europe (Heer). 
Ranunculus pensylvanicus Linn. f. Suppl. 272 (1781). 
R. canadensis JAcQ. Misc. 11, 343 (1778). 
Ri, trifolius MoENcH, Suppl. 70 (1802). 
R. hispidus Pursu, Fl. Am. I, 395 (1814). 
R. hirsutus Curt. Eat. Man. IV, 424 (1825) ? 
Wats. and Coult., Gray’s Man. 6 ed. 43; Britt., Fl. N. J. 37; Webb., Fl. 
Neb. 116; Chap., Fl. S. St. 8; Coult., Fl. Colo. 8; Mac., Fl. Can. I, 21; Forbes 
and Hems., Fl. Sin. I, 14; Cov., Fl. Ark. 163; Wats., Bibl. Ind. I, 22. 
China. 
North America: N. S., N. Br., Ont. to Brit. Col. and 
Pac.; N. in arctic circle; S. to N. Eng., N. J., Penn. and Va.; 
W. to Minn., Dak., Neb., Colo. Mont.; B. Col. to Oregon. 
Minn. valley: Forest region, especially E. and N. in 
valley; damp woodland and openings. 
Hers.: Ballard 812, Page lake, Carver Co.; Ballard 
695, Waconia; Ballard 737, Waconia; Sheldon 1255, Lake Ben- 
ton; Taylor 115, Janesville; Ballard 489, Prior’s lake, Scott Co.; 
Taylor 827, Glenwood; Ballard 532, Cleary’s lake, Scott Co.; 
Taylor 981, Glenwood; Oestlund 5, Hennepin Co.; Herrick 18, 
Minneapolis; Roberts 4, Grand Marais; Roberts 5, Duluth; 
Holzinger 7, Winona Co.; Bailey 71, Vermilion lake; Sandberg 
28, Red Wing; Herb. Moyer. 12, Montevideo. 
Ranunculus repens Linn. Spec. 779 (1753). 
R. prostratus Porn. Enc. Meth. VI, 118 (1804). 
BR. tomentosus Porn. Enc. Meth. VI, 127 (1804). 
RR. intermedius EAT. Man. ed. 3, 424 (1822). 
BR. clintoni Beck, Bot. 9 (1833). 
Wats. and Coult., Gray’s Man. 438; Britt., Fl. N. J. 37; Hook., Fl. Gt. 
Brit. 9; Mac., Fl. Can. I, 21, 481; Forbes and Hems., Fl. Sin. I, 16; Led., Fl. 
Ross. I, 44, 733; Nym., Fl. Eur.; Herd., Fl. Eur. Russ., 10; Coult., Fl. Tex. 
8; Wats., King Exp. 9; Wats., Bibl. Ind. I, 22; Hart., Fl. Scand. I, 163. 
Northern Eur. and Africa; Siberia and China. 
North Ameriea: Introduced eastward, but probably 
indigenous west of the great lakes; Ont. to Brit. Col.; S. to 
Tex., Arizona, Minn., Iowa, Ohio. 
Minn. valley: Plants of the true R. repens have been 
found at Ft. Snelling, where the species is possibly indigenous. 
Habitat like that of A. septentrionalis Poir. This is undoubt- 
edly a rare plant in the Minn. valley. 
