( 1806 ) 



Rhus Toxicodendron (a.) vulgare. Rooting 

 Poison-Oar. 



Class and Order. 



Pentandria Trigynia. 



Generic Character. 



Cal. 5-partitus. Petala 5. Bacca 1-sperma. 



Specific Character and Synonyms. 



Rhus Toxicodendron ; radicans,, foliis tematis : foliolis ven- 



tricoso-ovalibus interns aut sinuato-crenatis, racemfs 



rameis et axillaribus sessilibus dioicis. Pursh Ft. Am. 



Sept. 205. 

 Rhus Toxicodendron ; radicans,, trifoliatum., leucocarpum : 



foliolis ventricoso-ovalibus, integris aut sinuato-crenatis : 



racemis rameis et axillaribus, sessilibus dioicis. Michaux 



Fl.Bor.Am. I. p. 183. 

 («.) vulgare; radicante-scandens ; foliolis amplis integris seu 



rariter dentatis. Michaux I. c. Pursh I. c. 

 Rhus radicans ; foliis ternatis : foliolis petiolatis ovatis nudis 



integerrimis caule radicante. Willd. Sp. PL 1. p. 1481. 



cum synonymis. Hort. Kew. ed. alt. 2. p. 163. 

 Edera trifolia canadensis. Corn. Canad. 96. t. 97. 

 Vitis canadensis. Munting Phyt. p. 239. / 60. 

 (j3.) quercifolium ; erectum, humile : foliolis varie sinuato- 



lobatis, subfloratione tomentosis. Michaux I. c. Pursh 



I.e. 

 Rhus Toxicodendron. Willd. Sp. PI. I. p. 1481. Hort. 



Kew. ed. alt. 2. p. 82. 

 (y) microcarpon; foliolis oblongo-ovalibus Ionge acuminatis 



subrhomboideis, fructu multo minore. Michaux I. c. 



Pursh I. c. 



That Rhus radicans and Toxicodendron are really va- 

 rieties of the same species, can hardly be doubted by any one 



