Erigeron heterophyllum. 2338 
are considerably shorter than the secondary, and flower first. The 
radical leaves are ovate, acute, deeply toothed, and supported by 
broad winged petioles, half the length of the leaves. The stem-leaves 
are sessile, lanceolate, acute, deeply sinuated, or remotely serrate- 
toothed in the middle. The leaves of the branches are lanceolate, 
entire, and closely sessile. All the leaves, except those from the 
root, are ciliated at and near the base, as represented in the plate. 
The flowers are borne in terminal, ‘rarely lateral, corymbs; are nu- 
merous, and resemble those of E. Philadelphicum. The florets of 
the disk are bright yellow, and the ray-florets capillary, numerous, 
white, pale-blue, and sometimes pale-purple. The whole plant is 
of a dark or deep-green colour, in which circumstance it strikingly 
differs from the preceding species. It grows, as has been already 
mentioned, with its congener, just described ; and in the neighbour- : 
hood of Philadelphia, it is nearly as abundant. 
MEDICAL PROPERTIES OF ERIGERON PHILADELPHICUM AND 
seiae - ERIGERON HETEROPHYLLUM. 
These two plants are introduced into this work, on account 
of their diuretic qualities. The E. Philadelphicum has been known 
for some years, as a diuretic ; and it has been much used and com- 
