216 PITTONIA. 
continuing half across the subcordate or subtruncate base 
and numbering about 20 on each side, venation not obvious 
except beneath, both faces nearly or quite glabrous: cymes 
lax and involucres narrow, their bracts about 10, thin and 
nearly glabrous, linear, lightly 2-nerved: flowers about 12; 
corollas with very slender tube and slightly shorter cam- 
panulate limb, segments with few hairs; styles well exserted ; 
achenes oblong-linear, glabrous. 
Rich woods about Knoxville, Tenn. A. Ruth, Oct., 1898, 
n. 715 of my set. Also in the U. S. Herbarium from the 
same place, 24 Sept., 1894, by S. M. Bain. Its affinities lie 
with E. ageratoides, The foliage in this bears much likeness 
to that of some Asters of the A. macrophyllus group. 
E. VIBURNIFOLIUM. Slender, 2 or 3 feet high, green and 
seeming glabrous, but stem and peduncles puberulent: 
leaves thin, about 2 inches long on slender petioles of 4 inch, 
the whole much shorter than the internodes, lamina nar- 
rowly ovate, usually somewhat rounded at base, evenly and 
coarsely dentate, the teeth about 7, or occasionally 5 only, 
to each side, prominently 3-nerved, the nerves and veinlets 
whitish in contrast with the deep green of the leaf, lower 
face paler and scaberulous, the upper face and the margins 
with some scattered stiff hairs: inflorescence borne above 
the leaves and somewhat naked-panicled: involucres long 
and narrow as in the last, about 7 to 10-bracted and with a 
similar number of flowers, the linear bracts somewhat stri- 
gose-pubescent, only obscurely striate: corolla-lobes notably 
hairy at tip; styles not much exserted: slender achenes 
linear, glabrous. 
Borders of woods near Knoxville, Tenn., Aug., 1898, col- 
lected by A. Ruth (n. 718 of my set) and distributed by 
him, at my instance, as E. aromaticum. Almost the same, 
