304 
SYNGENESIA JEQUALIS. 
involucri squamis sub flowered; scales of the 
aequalibus. E. involucrum nearly e- 
qual. 
Sp. pi. 3. p. 1765. Pursh, 2. p. 516. 
E. Urticaefolium. Mich. 2. p. 100. 
Stem 2 to 3 feet high, smooth, glabrous ; leaves generally opposite, t\vo 
to four inches long, glabrous, coarsely toothed, on petioles two inches long. 
Involucrum ten to twelve-leaved, twelve to sixteen-flowered ; leaves linear- 
lanceolate, finely pubescent, nearly equal in length. Corolla white. Style 
longer than the corolla. Seeds angled, glabrous. Pappus slightly scabrous. 
I feel doubtful whether the plant I have described is the E. Ageratoides of 
Muhl. 5 it certainly is the E. Urticaefolium of Mich, and its leaves bear a 
striking resemblance to those of the Urtica, (now Boehmeria) cylindrica. 
Grows in damp rich soils. Paris Island. 
Flowers September. 
19. Aromaticum? 
Leaves on petioles, 
cordate-ovate, acute, 
triplinerved, obtusely 
serrate, somewhat sca- 
brous; flowers in co- 
rymbs; scales of the 
involucrum nearly e- 
qual. 
Sp. pi. 3. p. 1765. Mich. 2. p. 100. Pursh, 2. p. 516. 
E. Cordatum. Walt. p. 199. 
Stem about two feet high, terete, very finely pubescent, heaves opposite, 
on short peduncles, the lower very distinctly cordate, all acute not acumi- 
nate, tripli-nerved, coarsely and unequally toothed, somewhat scabrous on 
the upper surface, finely pubescent underneath. Flowers in a terminal co- 
rymb, the lower branches opposite, brachiate. Involucrum about ten-leaved, 
thirteen to twenty flowered; leaves lanceolate, pubescent, nearly equal. 
Corolla very white, nearly twice as long as the involucrum, fragrant. An- 
thers white. Style longer than the corolla. Seeds angled. Pappus slight- 
ly scabrous. 
This plant is certainly the E. Aromaticum of Michaux, and E. Cordatum 
of Walter. Whether it is the E. Aromaticum of Linnaeus and Gronovius is, 
I think, questionable ; it does not resemble the figure referred to in Plukenef 
t. 88. f. 3. 
Grows in rich dry soils. 
Flowers August — October. 
E. foliis petiolatis, 
cordato-ovatis, acutis, 
triplinervibus, obtuse 
serratis, sub scabris; 
floribus corymbosis; 
involucri squamis sub- 
aequalibus. E. 
