346 METASPERMAE OF THE MINNESOTA VALLEY. 



Cotinus and Toxicodendrou Tourn. Inst. 610 (1700). 



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



Vernix Adans. Fam. PI. II, 342 (1763). 



Pocopliorum Neck. Elem. II, 226 (1790). 



Melanococca Blume, Lutj. Bat. I. 236 (1833). 

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

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

 Schenck, Palaeophyt. 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, 1-4; Canada, 

 7-9; W. Tex., 6; S. Sts., 9; PI. 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. 



Rhus radicaiis Linn. Spec. 266 (1753). 



R. toxicodendron var. radicans Tobr. F1. U. S. 324 (1824). 

 E. 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; Gov., Fl. Ark. 173; 

 Wats., Bibl. Ind. I, 183. 



Saghalin, Japan and Kurile Isls. ; 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, J a,nesY\l\e; Taylor 179 J&nesYille; 

 Ballard 190, Jordan, Scott Co.; 'Taylor 540, Janesville; Sheldon 

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

 Minnesota lake; Sheldon 1468, Pipestone City; Sheldon 884, 

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

 siibe 47, Minneapolis; Holzincjer 45, Winona Co. 



Rhus vernix Linn. Spec. 265 (1753). 



Toxicodendron pinnatiim Mill. Diet. ed. 8 (1768). 

 Elms 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. I, 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. 



