346 METASPERMAE OF THE MINNESOTA VALLEY. 



Cotinus and Toxic odendron TOURN. last. 610 (1700). 



Lithraea MIERS. Trav. Chile, II, 529 (1826). 



Vernix ADANS. Fara. PI. II, 342 (1763). 



Pocophorum NECK. Elem. II, 226 (1790). 



Melanococca BLUME, Lug. Bat. I. 236 (1833). 

 Baillon, Hist. PL V, 321; Benth. and Hook., Gen. PL I, 418; Durand, 

 2nd. Gen. Phan. 86; Gray, III. Gen. II, 157; Sargent, N. Am. Silva III, 1, 7; 

 Schenck, Palaeopfiyt. 543. 



Living species: 120; principally at the Cape of 

 Good Hope; also warmer extra- tropical regions, and a few in 

 the tropics. Russia, 2; Europe, 4; N. America, 14; Canada, 

 7-9; W. Tex., 6; S. Sts., 9; PL Wheel., 6; E. Sts., 7; Calif., 4; 

 Rocky mts., 3. 



Fossil species: 30-40 spec. Cretaceous, N. Amer. (Les- 

 quereaux) and Greenland (Heer) ; Tertiary Europe (Saporta and 

 others)-, N. America (Lesqx.) and Asia. 



Rims radicans LINN. Spec. 266 (1753). 



E. toxicodendron var. radicans TORR. Fl. U. S. 324 (1824). 

 B. toxicodendron AUCT. AMER. in part. 



Wats, and Coult., Gray's Man. 6 ed. 119; Britt., Fl. N. J. 79; Chap., Fl. 

 S. St. 69; Upham, Fl. Minn. 37; Webb., Fl. Neb. 121; Coult., Fl. Colo. 49; 

 Mac., Fl. Can. I, 101; Nym., Fl. Eur.; Miyabe, Fl. Kur. 224; Coult., Fl. 

 Tex. 68; Roth., Wheel. Exp. 84; Wats., King. Exp. 53; Cov., Fl. Ark. 173; 

 Wats., Bibl. Ind. I, 183. 



Saghalin, Japan and Kurile Jsls. ; intro. from East in 

 Germany. , 



North America: N. S. to Saskatchewan; S. toN. Eng., 

 N. J. andFla.; W. to Dak., Colo., Ark. and Tex. 



Minn, valley: Throughout; shores of lakes, low 

 ground and edges of woods; abundant. 



HERB.: Taylor 131, Janesville; Taylor 179 Janesville; 

 Bollard 190, Jordan, Scott Co.; Taylor 546, Janesville; Sheldon 

 169, Madison Lake; Bollard 337, Jordan, Scott Co.; Taylor 624, 

 Minnesota lake; Sheldon 1468, Pipes tone City; Sheldon 884, 

 Sleepy Eye; Sheldon 55, Elysian; Bollard 688, Waconia; Kas- 

 sube 47, Minneapolis; Holzinger 45, Winona Co. 



Rhus vernix LINN. Spec. 265 (1753). 



Toxicodendron pinnatum MILL. Diet. ed. 8 (1768). 

 Rhus venenata DC. Prodr. II, 68 (1825). 



Wats, and Coult., Gray's Man. 6 ed. 119; Chap., Fl. S. St. 69; Upham, 

 Fl. Minn. 37; Britt., Fl. N. J. 79; Mac., Fl. Can. I, 100, 505; Wats., Bibl. 

 Ind. 1, 184; Sarg., N. A. Silv. Ill, 23. 



North America, W. Ont. and N. N. Eng. to N. J., N. 

 Car., N. Ga. and Alab.; W. to Minn., Ark. and W. La. 



Minn, valley: Ft. Snelling and only far N. E. ; swamps 

 and springsides; rare. 



