Class XIX. Order I. 297 



A stout, rough species, three or four feet high. Leaves per- 

 fectly ovate, the upper ones somewhat deltoid, all of them fur- 

 nishpd with simple, obtuse teeth, rough and veiny. Corymb 

 flat, topped with white flowers. Calyx imbricated with hairy, 

 acute segments. Florets about seven or eight. In low grounds 

 at Sudbury, twenty miles from Boston. July, August. Peren- 

 nial. 



EUPATOKIUM PERFOLIATUM. L. Thorough Wort. 



Bigelow, Medical Botany, PI. ii. 



Leaves perfoliate-connate, downy. L. 



Syn. EupAroRiuM CONNATUM. MX. 



The sterns are erect, round, hairjr, branched at top only. 

 The leaves, which are perforated by the stern, are rather per- 

 foliate than connate, since they have not the character of two 

 leaves joined together, but of one entire leaf, having its four 

 principal veins proceeding at right angles from the four quarters 

 of the stem, two of them being situated in the place of the sup- 

 posed junction. The upper leaves, however, are generally 

 divided into pairs. The main leaves are acuminate, decreas- 

 ing gradually in breadth from the stem, where they are widest, 

 to the extremities. They are serrated, wrinkled, pale under- 

 neath, and hairy, especially on the veins. Flowers in corymbs 

 with hairy peduncles. Calyx cylindrical, imbricate, the scales 

 lanceolate, acute, hairy. Each calyx contains about twelve or 

 fifteen florets, which are tubular, with five spreading segments, 

 and surrounded with a rough down. The stamens in each con- 

 sist of five soft filaments, with blackish anthers united in a tube. 

 Style filiform, divided into two branches, which project above the 

 flower. Seeds oblong on a naked receptacle. In low lands and 

 meadows, common. August. Perennial. The whole plant is 

 bitter and used as a tonic. 



EUPATORIUM PURPUREUM. 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, 

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