128 GEOLOGICAL SURVEY OF NEW JERSEY. 
DIPSACE. 
DIPSACUS, L. 
‘ Teasel. 
D. syivestris, Mill. 
Roadsides and waste places; frequent. Naturalized from 
Europe. 
D. ruttonum, L. Fuller’s Teasel. 
Essex: Along the Passaic River, 1879—Rusby. Fugitive 
from Europe. 
COMPOSIT. 
VERNONIA, Schreb. 
Iron-weed. 
V. Noveboracensis (L.), Willd. 
In swamps and wet meadows. Common throughout the State. 
Forma albiflora, Britt. 
In similar situations; occasional. 
SCLEROLEPIS, Cass. 
Sclerolepis. 
S. uniflora (Walt.), B.S. P. (S. verticillata, Cass.) 
Pine-barren swamps. Ocean, Burlington and Cape May :— 
Parker. Atlantic: Quaker Bridge—Leggett ; Hammonton— 
F. L. Bassett.* 
EUPATORIUM, L. 
Thoroughwort. 
BE. purpureum, L. Joe-Pye Weed. Gravel Weed. 
Low grounds. Common throughout the State. 
Var. maculatum (L.), Darl. 
In similar situations ; common. 
EB. hyssopifolium, L. 
Monmouth: Keyport and Clarksburg— Lockwood ; Sea 
Bright—Leggett ; and frequent in sandy fields in the southern 
counties. Apparently confined to the Yellow Drift area. 
*In Comp. to Bot. Mag. i. 46, this plant is referred to as Hippurus vulgaris. 
