N. ORD.—COMPOSIT&. 78 
Tribe.—EUPATORIACEA. 
GENUS.—-EUPATORIUM ;, TOURN, 
SEX. SYST.—SYNGENESIA ALQUALIS, 
* 
EUPATORIUM PURPUREUM. 
PURPLE BONESET. 
SYN.—EUPATORIUM PURPUREUM, TRIFOLIATUM, AND MACULATUM, 
LINN.; E. VERTICILLATUM, MUHL.; E. TERNIFOLIUM, ELL. 
COM. NAMES.—PURPLE BONESET, THOROUGH-WORT, OR HEMP-WEED ; 
JOE-PYE,j OR JOPI-WEED; TRUMPET-WEED; QUEEN OF THE 
MEADOW ;+} GRAVEL-ROOT; (GER.) PURPURFARBENER WASSER- 
HANF. 
A TINCTURE OF THE FRESH ROOT OF EUPATORIUM PURPUREUM, L. 
Description.—This common herb varies greatly in form and foliage, the type 
being very tall and graceful. Stem rigidly erect, 6 to 12 feet high,§ stout, simple, 
and either hollow or furnished with an incomplete pith; it is punctate in lines and 
purple above the nodes, or often covered with elongated spots (£. macudata, Linn.). 
Leaves verticillate, mostly in fives, nearly destitute of resinous puncte, oblong- 
lanceolate, acutish or acuminate, coarsely serrate, roughish and reticulate-veiny ; 
petioles distinct or merely represented by the contracted bases of the leaves. 
Inflorescence a terminal, dense, compound corymb; Aeads very numerous, 5 to 
10-flowered.  /nvolucre flesh-colored, cylindrical; dvacts thin, membranaceous, 
somewhat scarious when dry, and faintly 3-striate, obtuse; they are closely imbri- 
cated in three rows, the exterior successively shorter. Receptacle flat, not hirsute. 
Style bulbous at the base, much exserted, Achenia smooth, glandular. 
Eupatorium.—This vast genus contains in North America alone 39 species 
and 16 distinct varieties ; other species are found in South America, Asia, Africa, 
and Europe. It is composed mostly of perennial herbs, but contains a few annuals, 
and shrubs in warmer regions. Leaves mostly opposite and simple, resinous and 
bitter, rarely alternate, whorled, or divided. Heads small, homogamous, discoid, 
and corymbosely-cymose or paniculate, rarely solitary; involucre cylindrical or 
-somewhat campanulate; sca/es numerous, purple, blue, or white, never really 
yellow, though sometimes ochroleucous. Flowers hermaphrodite and homochro- 
mous; corolla tubular and regular, 5-toothed; anthers included, not caudate ; 
receptacle naked and flat. Style cylindraceous, branched, the branches exserted, 
more or less thickened upward and very minutely pubescent. appus a single 
i first to use the plant as a remedy. 
ithri Eupator, king of Pontus, who was 
: . pare pa ete cured typhus in New England, with this plant, by powerful sweating. 
Lae w is more properly Spirea salicifolia, Linn. (Rosacez). 
f the Meado ¥ ee ‘ 
: pigs pocorn represented in the plate was nearly 10 feet high, growing in an open, rich field. 
