16 DlSSfiRTATION OlSr THE 



which sixteen are indigenous to the United 

 States. Persoon, whose enumeration is still 

 more complete, has, in his Synopsis Specierum 

 Plantarum, seventy-five species ; of these, se- 

 venteen are considered as the products of this 

 country. The species to which the writer 

 more particularly intends to confine his atten- 

 tion, on the present occasion, is the eupatori- 



UM PERFOLIATUM of LiNNiEUS. 



This species is thus designated : 



E. Perfoliatum, foliis connato perfoliatis 



tomentosis. Liuf 

 E. Virginianum. Morris Hist. 

 E. Virginianum. Pluk. Aim. 

 E. Connatum. Mich. Flor. Bor. Amer. 



This plant is familiarly known throughout 

 the United States, and is distinguished by a 

 great variety of n^mes; such as thorough- 

 wort, Indian-sage, cross-wort, bone-set, vege- 

 table antimony, &c. It is indigenous to this 

 country, and may be found from Canada to 

 the Floridas: it naturally delights in stand- 



