192 
COMPOSITE. (COMPOSITE FAMILY.) 
the obconical or obovoid involucre spatulate or oblong , obtuse , oppressed.; 
achenia hairy. — Pine barrens of New Jersey, in moist sand ; only 
the var. dubia. Spike or raceme sometimes branched and panicled. 
5. KVHNIA, L. Kuhnia. 
Heads 10-25-flowered. Scales of the involucre few and loose¬ 
ly imbricated, lanceolate. Corolla slender, 5-toothed. Achenia 
cylindrical, many-striate. Pappus a single row of very plumose 
(white) bristles. — A perennial herb, with mostly alternate lance¬ 
olate leaves, resinous-dotted, and paniculate-corymbose heads of 
nearly white flowers. (Dedicated to Dr. Kuhn , of Pennsylvania, 
who brought the living plant to Linnaeus.) 
1* K. <n pa to Worries, L. Leaves varying from broadly lan¬ 
ceolate and toothed, to linear and entire. — Dry soil, N. Jersey, Penn¬ 
sylvania, and southward. Sept. 
®^PATORIUJ|, Tourn. Thoroughwort. 
Heads 3-many-flowered. Involucre cylindrical or bell-shaped. 
Receptacle flat. Corolla 5-toothed. Achenia 5-angled. Pappus 
a single row of slender capillary barely roughish bristles. — Per¬ 
ennial herbs, often sprinkled with bitter resinous dots, with gen¬ 
erally corymbose heads of white, bluish, or purple blossoms, ap¬ 
pearing near the close of summer. (Dedicated to Eupator Mith- 
ridates , who is said to have used a species of the genus in medi¬ 
cine.) 
Heads cylindrical^ 5 - 10-floioered; the purplish scales numerous, 
closely imbricated in several rows , of unequal length , slightly stri- 
JlowetT* hCrbS WUk ampU m ° Slly whorled leaces ’ “ nd fltsh-oobrd 
1. E. purpiYrenm, L. (Joe-Pye Weed. Trumpet-Weed.) 
Mems tall and stout, simple; leaves 3-6 in a whorl, oblong-ovate or 
lanceolate, pointed, very veiny, roughish, toothed; corymbs very 
dense and compound.-Varies greatly in size (2°-12° high), with 
spotted or unspotted, and often dotted stems, &c., and includes many 
nominal species.—Low grounds, common. 
* * Heads 5-ZQ-jlouered : involucre of 8-15 more or less imbricated 
and unequal scales : flowers white, 
res opposite , or sometimes the uppermost alternate, sessile or near’ 
*y so: heads 5- (,rarely 6 - 8-) flowered. 
E* hyssopifolium, L. Minutely pubescent; leaves nar - 
ow, Unear or lanceolate , elongated, obtuse, 1 -3-nerved, entire, or the 
