190 Class XIX. Order I. 



base, acute, but not acuminate like the last, the sides cut into 

 very large, and rather blunt teeth. Corymb compound, ter- 

 minal, pubescent. Flowers white j Grows at Cambridgport 

 and elsewhere, in low ground. August, September, Peren- 

 nial. 



EUPATORIUM PERFOLIATUM. L. Tlioroughwort. Bomset. 

 Leaves connato-perfoliate, downy* L. 



Syn. EUFAfORIUM CONNAfUM. Mich. 



This species is readily known from the rest by its long, 

 acute leaves, alternately crossing, and perforated by the stem. 

 The plant is usually from two to four or five feet in height. 

 Stem erect, hairy or woolly, branching only at top. Leaves 

 connate, tapering to an acute point, serrate, wrinkled, whitish 

 and woolly underneath. The upper leaves are often found dis- 

 tinct at their base, not connate. Flowers white, in a large co- 

 rymb, with woolly peduncles. Calyx containing ten or more 

 florets. Grows in moist land and flowers in August and Sep- 

 tember. This plant has acquired great medicinal reputation, 

 and is considerably employed as a tonic, sudorific, and emetic. 

 Perennial. 



EUPATORIUM FURPUREUM. L. Trumpet weed. 



Leaves petioled, four or five in a whorl, ovate- 

 lanceolate, serrate, wrinkled and veiny, somewhat 

 rough ; stem fistulous. Willd. 



A tall plant, growing about the borders of thickets in wet 

 land. Stem five or six feet in height, straight, round, purplish, 

 hollow throughout its whole length, its tube not being interrupt- 

 ed by joints. Leaves in whorls of four, five, or six ; ovate, rug- 

 ged with veins, acute. Flowers purple, in a large, branching, 

 terminal corymb. Calyx containing about eight florets, with 

 very long styles. August, September. Perennial. 



