56 ESSAYS. 
subsequent “ Enumeration of Saxifragaceous Plants,” it must 
have been introduced into the English gardens by Fraser as 
early as 1810.1. We know not how such a common plant could 
have escaped the notice of Michaux. Under the name of 
Lettuce the leaves are eaten by the inhabitants as a salad. 
At this same place we also saw an Umbelliferous plant not 
yet in flower, which we believe to be Conioselinum Cana- 
dense, Torr. & Gr. (Selinwm Canadense, Michx.), a very rare 
plant in the extreme northern States and Canada, to which 
we had supposed it exclusively confined. We found plenty 
of Cimicifuga Americana, Michx., but were obliged to con- 
tent 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 Mr. Nuttall could not have met with this exclusively 
mountain flower near Wilmington; and also, that the C. 
Lyoni of Pursh and the C. latifolia of Muhlenberg and 
Elliott, are doubtless founded upon one and the same species. 
Both, indeed, are said to have been collected by Lyon, and the 
leaves vary from ovate-lanceolate or oval with an acute base, 
to ovate with a rounded but scarcely cordate base. Pursh’s 
character is drawn from a cultivated specimen. Here we 
again met with the Aconitum previously observed in similar 
situations on the Negro Mountain, and which, being then only 
in bud, we took for the A. wncinatum, a species collected in 
this region by Michaux, and recently by Mr. Curtis and other 
botanists. We were greatly surprised, therefore, to find that 
1 The only important diserepaney respects Haworth’s character, “ Co- 
rolla irregularis, petalis 2 inferioribus elongatis divaricantibus graciliori- 
bus,” and “ Flores albi, rabro minute punctati’’ ; while the petals in our 
plant are very nearly equal and similar, and pure white, except the yellow 
spot at the base. Aulaxis nuda, Haworth, /. c. (of unknown origin), ap- 
pears to be the more ordinary and nearly glabrous form of this species. 
Mr. Don’s description of S. erosa, probably drawn from the cultivated 
plant, also differs from our plant in several minor points. 
