STUDIES IN THE COMPOSIT E. 277 
though with a more ample and lax panicle of rather nar- 
rower heads, was distributed by A. H. Curtis from dry pine 
barrens near Jacksonville, Florida, (n. 5,339) under the 
same name; but it is constantly most unlike the true FE. 
aromaticum, and very readily distinguished. The foliage, 
in outline and toothing, is much like that of Viburnum den- 
tatum. 
E. ANGUsSTATUM. Several feet high, stoutish and rigid, 
freely and divaricately branching from below the middle of 
the stem, this subterete, glabrous: leaves thinnish, 2 to 4 
inches long, ovate-lanceolate, acuminate, often subfalcate, 
remotely serrate except at the cuneate base, the not very 
slender petioles $ to 14 inches long: heads subcorymbose 
at the ends of all the branches, the pedicels puberulent; 
bracts of involucre very sparsely so, linear-spatulate: corol- 
las with tube and funnelform limb of about equal length: 
styles well exserted: achenes slender, strongly 4 to 6-angled, 
the angles apt to be scabrous-ciliolate. 
My specimens of this are from western Louisiana, where 
they were collected by the late Rev. Father Langlois. They 
no doubt represent well the E. ageratoides var. angustatum of 
Gray; but the plant is much more clearly distinct from E. 
ageratoides than that is from E. aromaticum. 
E. ABORIGINUM. Two feet high and with many ascend- 
ing or somewhat spreading leafy and floriferous branches, 
both stem and branches puberulent, the minute hairs white: 
leaves rather broadly ovate, acute or abruptly acuminate, 
coarsely serrate except across the very abruptly tapering 
base, thin, deep-green with light-colored triple and branch- 
ing veins, glabrous above, scaberulous beneath: cymes very 
shortly peduncled and their subtending leaves not much 
