L4 
. Icon. Pluk. alm. t. 88. f. 3. 
In woods and on the banks of rivers: Pensylvania to 
| SYNGENESIA XQUALIS. Eupatorium. 
On the banks of rivers and in swamps; frequent: New 
, York to Carolina. v. v. From four to six feet high ; 
flowers purple. It differs from No. 18 in its stem, 
broader and smoother leaves, and white calyces ; from 
No. 19 in its stem and smooth leaves. 
23. E. folis connato-perfoliatis oblongis sursum angustatis 
-serratis rugosis subtus tomentosis, caule villoso.— 
Willd. sp. pl. 3. p. 1761. 
E. connatum. Mich, fl. amer. 2. p. 99. 
Icon. Pluk: alm. t.87. f. 6. 
In low meadows and about springs: Canada to Florida. 
21. Aug.—Oct v.v. From two to three feet high ; 
flowers white. The whole plant is exceedingly bitter, 
and has been used for ages past by the natives and in- 
babitants in intermitting fevers. It is generally known 
by the name of Therough-wort or Bone-set. Y have 
stated a case of its efficacy in those diseases in a letter 
to William Royston, Esq. who inserted it in the Me- 
dical and Physical Journal In which | stated the 
benefits derived from this plant, by myself and others 
during my stay in the neighbourhood of lake Ontario, 
when both the influenza and lake fever (similar to the 
yellow fever) were raging among the inhabitants. It, 
is generally used as a decoction, or, which I consider 
the more effectual way, as an infusion in gin or rum. 
ceelestinum. 24. E. foliis petioli ordito- ovatis obtusiusculis tripliner- 
vibus obtuse serratis, floribus corymbosis. Willd. sp. 
pl. 3. p. 1764. : 
Icon. Dill. elth. t. 114. f. 159. 
In mountain-woods of Virginia to Carolina. Y. Aug. 
—(Oct. v.v. Flowers large, beautiful blue. 
aromaticum. 25, E. foliis petiolatis ovatis acutis trinervibus obtuse-serratis 
. glabris, caule superne paniculato, floribus corymbosis, 
calycibus simplicibus. Willd. sp. pl. 3. p. 1765. 
Florida. 2). Aug.—Oct. v.v. Flowers large, clear 
white, sweet-scented. di 
ageratoides. 26. E. foliis petiolatis ovatis acuminatis trinervibus inzequaliter 
grosse serratis glabris, corymbo multifloro divaricato, 
calycibus subsimplicibus, Willd sp. pl. 3. p. 1765. 
E. urticefolium. Mich. fl. amer. 2. p. 100. 
Ageratum altissimum, Sp. pl. ed. 2. p. 1176. 
Icon. Moris, hist. 3. 5. 7. 1118. f- 11... — 
