ical Excursion to the Mountains of North Carolina. 33 
sniisensnsleion: on the dripping face of a rocky precipice near 
our encampment for the night, on the northwestern. side of the 
mountain, five or six hundred feet beneath the highest summit. 
The vegetation is here so backward, that the Savifraga leucan- 
~ themifolia growing on the brow of this precipice was not yet in 
blossom, and the Sasifraga erosa, Pursh, in the wet soil at its 
base was scarcely out of flower, while at the foot of the moun- 
tain it had long since shed its seeds. We were therefore enabled 
to. satisfy ourselves that S. erosa belongs to the section | Hydatica, 
and that the 8. Wolleana, Torr. §° Gray, from a mountain near 
23 ethlehem in Pennsylvania, is only a variety of this. species. 
rsh gathered his plant in Virginia, “out of a run near the road 
from the Sweet Springs to the Union Springs, five miles from 
the former.” But if this species be the Robertsonia micranthi- 
folia of Haworth’s Succulent Plants, as is most probable, and 
consequently the Aulaxis micranthifolia of this author's subse- 
quent Enumeration of Saxifragaceous plants, it must have been 
introduced into the English gardens by Fraser, as early as 1810.* 
We know not how such a common plant could have escaped the 
hotice of Michaux. Under the name of Lettuce, the leaves are 
eaten by the inhabitants asa salad. At this place we also saw 
an Umbelliferous plant not yet in flower, which we believe to 
be. Conioselinum Canadense, Torr. §& Gray, (Selinum Cana- 
dense, Michz. ,) @ very rare plant in the extreme Northern States 
‘ and. Canada, to.which we had supposed it exclusively confined. 
We found plenty of Cimicifuga Americana, Michz., but were 
obliged to content ourselves with specimens not yet in flower, 
and with vestiges of the last year’s fruit. It should be collected 
in September. 
We were also too early in the season for Chelone Lyoni, 
Pursh, which we found in abundance between the precipice 
mentioned above and the summit of the mountain, with the 
flower-buds just beginning to appear. Mr. Curtis remarks that 
caeaabing cal 7” a 
TU Fuh he eae 
anise RNe aT OTR 
eer SE 
* The only feaportant deacue vesetele Haworth’s cane pied * Corolla ir- 
regularis, petalis 2 inferioribus elongatis divaricantibus gracilioribus,’ 
nuda, Haworth, l. c. (of unknown origin,) appears to be the more ordinary and 
nearly slabrons form of this species. Mr. Don’s description of S. erosa, fee: 
n from the cultivated want, also differs from our plant in =r minor 
girs Oot Deo: 1841. a i aie eg 
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