126 Eupatorium perfoliatum. 
EUPATORIUM. 
Gen. Pl. 1272. 
Nat. Syst. Juss. Corymbiferae. 
Nat. Qed. Lin. Compositae discoideae. 
Artific. Syst. Lin. Classis Syngenesia. Ordo Polygamia aequalis. 
Evpatrorium, T. L.* Eupatoire. Flores flosculosi. Calix imbricatus inequalis oblon- 
gus cylindricus pauciflorus. Pappus plumosus. Caulis frutescens aut herbaceus, 
interdim scandens ; folia in plurimis opposita, in paucis verticillata aut alter- 
na; flores sepé corymbosi terminales aut axillares, purpurascentes, Species que- 
dam Linnzane calice polyphyllo simplici non imbricato, Cacaliz aflfiniores ex 
D. Lamark ; quedam pappo piloso. An congener Critonia Brown. Jam. t. 34. 
f. 1., cui ex Autore calix ’4-florus, pappus ramosus, cetera similia ? 
Juss. Gen. Pl. ed. 1789. p. 178. 
Gen. Ch. Common Calix oblong, imbricated ; scales linear-lanceolate, erect, unequal, 
unarmed. Cor. Compound, uniform, discoid; florets all uniform, perfect, fer- 
tile, monopetalous, funnel-shaped, with a regular 5-cleft spreading border. 
Stam. Filaments five, capillary, very short ; anthers united into a cylindrical 
tube, Pist. Germen minute; style thread-shaped, very long, cloven, slender, 
bluntish, straight. Peric. None, except the permanent calix. Seeds solitary, 
oblong, angular ; down long, rough or feathery. Recep. naked. 
Ess. Ch. Receptacle naked. Down rough or feathery. Calix imbricated, oblong. Style 
prominent, cloyen half way down, divaricated, Ency. 
Recep. Nudum. Pappus pilosus. Cal. imbricatus, cylindricas, Stylus semibifidus, 
longus. 
Evparorivum perfoliatum ; foliis connato-perfoliatis oblongis sursum angustatis ser- 
 Fatis, rugosis, subtus tomentosis, caule villoso.—Willd. and Pursh. 
Leaves connate-perfoliate, oblong, narrow above, serrate, rough, tomentose be- 
neath; stem villous. 
A 2 
