( 178 ) 
EUPATO'RIUM* * 
Linnean Class and Order. Syngene'sia f, Polyga'aiia, 
jEqua'eisJ. 
Natural Order. Compo'siTvE§; tribe, Corymbifera5, Juss. — 
Lindl. Syn pp. 140 & 142. ; Introd. to Nat. Syst. of Bot. pp. 197 
& 199. — Compo'sitas ; subord. Eupato're,e ; Loud. Hort. Brit. 
pp.520 & 521. — Synanthf.'re.e ; tribe, Corymbi'feras ; Rich, 
by Mactrilliv. pp.454 & 455. — Corymbi'fer e ; sect. 1. Juss. Gen. 
PI p. 177. — Sm. Gram, of Bot. pp. 121 & 123. — Syringales ; 
type, Asteracete ; Burn. Outl. of Bot. v. ii. pp. 900 & 926. — 
CoMPo'siTiE, Linn. 
Gen. Char. Involucrum ( common calyx ) (see fig. 1.) oblong, 
imbricated ; its scales strap-spear-shaped, upright, unequal, and un- 
armed. Corolla (see fig. 1.) compound, uniform ; florets (see f. 2.) 
few, parallel, level-topped, perfect, funnel-shaped, regular; their 
limb in 5 equal, spreading segments. Filaments 5, hair-like, very 
short. Anthers united into a cylindrical tube, not prominent. 
Germen (see fig. 2.) very small, oblong, angular. Style (see fig. 2.) 
thread-shaped, prominent, cloven as far as the top of the anthers. 
Stigmas spreading, slender, downy. Seed-vessel none, except the 
slightly spreading involucrum. Seed (see figs. 3 & 4.) oblong, an- 
gular. Pappus (see figs. 2, 3, & 4.) sessile, rough or feathery, 
permanent. Receptacle (see figs. 5 & 6.) small, naked. 
The oblong, imbricated involucrum ; the few parallel, crowded, 
level-topped florets; the deeply cloven, prominent style; the rough 
pappus ; and the naked receptacle ; will distinguish this from other 
genera in the same class and order. 
One species British. 
EUPATO'RIUM CANNABI'NUM. Common Hemp-agrimony. 
Water-agrimony. Common Dutch-agrimony. 
Spec. Char. Leaves opposite, somewhat petiolate, in 3 or 5, 
deeply serrated, spear-shaped segments ; the middle one the longest. 
Engl. Bot. t 428. —Ray’s Syn. p. 179. — Linn. Sp. PI. 1173. — Huds. FI. Angl. 
(2nd ed.) p.356. — Sm. FI. Brit. v. ii. p. 860. Engl. FI. v. iii. p. 400. — With. 
(7th ed.) v. iii. p. 919 — Gray’s Nat. Arr. v. ii. p. 474. —Lindl. Syn. p. 142. — 
Hook. Brit. FI. p. 354. — Lightf. FI. Scot. v. i. p. 464. — Sibllr. FI. Oxon. p. 249. — 
Abbot’s FI. Bedf. p. 178.-Purt. Mini. FI. v.ii. p. 386.— Relit. FI. Cant. (3rd 
ed.) p.334. — Davies’ Welsh Bot. p. 76. — Hook. FI. Scot, p 238. — Grev. FI. 
Edin. p. 174. — FI. Devon, pp. 135 & 158. — Johnst. FI. of Bervv. v. i. p. 180. — 
Winch’s F’l. of Northumb. and Durham, p. 53. — Walk. FI. of Oxf. p. 234. — 
Perry’s PI. Varvic. Select®, p. 69. — Jacob’s West Devon, and Cornw. FI. — 
Bab. FI. Bath. p. 25. — iMack. Catal. of PI. of Irel. p. 72. — Eupatorium canna- 
binum mas, Johnson’s Getarde, p. 711. 
Localitics.— O n the banks of rivers, wet ditches, and in watery places, 
frequent. 
Fig. 1. Involucrum and Florets. — F’ig. 2. A separate Floret, with the Germen 
and Pappus. — Fig. 3. A Seed, crowned with the Pappus or proper Calyx. — 
Fig. 4. 1 he same, magnified.— Fig. 5. The Receptacle, and 3 of the outer per- 
manent scales of the Involucrum. — Fig 6. I he same, magnified. 
* From Eupator, the surname of MmiiuDAiiis, king of Pontus, who firs 
brought this plant into use. HooKttt. 
t Ses Tussilugofarfura, f. 91 , n. t. } Sec Sonchus oleraceus, f. 147, n. J. 
$ See PrenanNies muralis, f. 27, a. 
