516 STNGENESiA -EauALis. Eupatorioin, M 
On the banks of rivers and in swamps ; frequent : l^e# ||l 
York to Carolina, v. v. From four to six feet high | >1’ 
flowers purple. It differs from No. 1 8 in its stem, ) J 
broader and smoother leaves, and white calyces j from i i 
No. ig in its stem and smooth leaves. ^ ] 
perfoliatum. 23. E. foliis connato-perfoliatis oblongis sursum angustatis > : 
serratis rugosis subtus tomentosis, caule villoso. — j 
Willd. sp. pL3. p.\7Q\. I 
E. connatum. Mich.Ji. amer. 2. p. gg. 
Icon. Pliik. aim t.sy.fd. 
In low meadows and about springs : Canada to Florida. ; | 
11 . Aug. — Oct V. V. From two to three feet high j j 
flowers white. The whole plant is exceedingly bitter, , 
and has been used for ages past by the natives and in- ! 
habitants in intermitting fevers. It is generally known | 
by the name of Thorough-wort or Bone-set. I have j 
stated a case of its efficacy in those diseases in a letter 
to William Royston, Esq who inserted it in the Me- j 
dical and Physical Journal. In which I stated the ' i 
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 '1 i 
is generally used as a decoction, or, which I consider 
the rhore effectual way, as an infusion in gin or rum. 
cadestinum* 24. E. foliis petiolatis cordato-ovatis obtusiusculis tripliner- 
vibus obtuse serratis, floribus corymbosis. Willd. sp, 
pL3.p.\764. 
Icon. Dili elth. t. 114./ 15g. 
In mountain-woods of Virginia to Carolina. % . 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. 
Icon. Pluk. aim. t. 88./ 3. 
In woods and on the banks of rivers : Pensylvania to 
^ Florida. 1/. Aug.— -Oct. v.v. Flowers large, clear . 
white, sweet-scented. 
ageratoides, 26. E. foliis petiolatis ovatis acuminatis trinervibus inaequaliter 
grosse serratis glabris, corymbo multifloro divaricata, 
calycibus subsimplicibus. Willd. sp. pl, 3. p, 1765 . 
E. urticaefolium. Mich.fi. amer. 2. p. 100. 
Ageratum altissimum. Sp.pl. ed. 2. p. H 76 . 
Icon. Moris, hist, 3, s, 7> t, IB. f. ll. 
