* NOTE CONCERNING THE ely COLLECTED IN THE SECOND EXPE 
TION OF CAPTAIN FREMONT. a 
When Captain Frémont set out on his second expedition, he was well provided with wera & 
other means for making extensive botanical collections; and it was understood that, 
we should, conjointly, prepare a full account of his ‘plants, to be appended to his’ pra About 
1,400 species were collected, many of them in regions not before explored by any botanist. In 
consequence, however, of the great length of the journey, and the numerous accidents to which 
the = exposed, but especially owing to the dreadful flood of the Kansas, which deluged the 
borders of the Missouri and Mississippi rivers, more than half of his specimens were | i 
he reached the borders of civilization. Even the portion saved was greatly ged. 
many instances, it has been extremely difficult to determine the plants. As Ww 
cient time before the publication of Captain Frémont’s report for the proper st 
his collection, it has been deemed advisable to reserve the greater part of them to incorporate with 
Bie p ants whi lege he will bring with him on returning from his thard ser <r 
which he has just set 
The loss sustained Ee pees Frémont, and, I may say, by the botanical ile. will, we trust, 
be partly made up the present and next seasons, as much of the same country will be passed over 
again, and some new regions explored. Gea have also been made, by which the | 
Enicicne will be preserved, at least from the destructive effects of water; and a person a 
nies the expedition, who is to make — of all the most interesting plants. Particular atten- ; 
tion will be given to the forest trees and the vegetable productions that are useful in the arts, or 
are employed for food or medicine. = a 
Description of some new genera and species of planis, collected in Cap- 
J. C. Frémont’s exploring expedition to Oregon and North Caii- .. 
ge in the years 1843-44: By John nahi and J: Frémont. . 2 
. CreoMELLa (?) OBTUSIFOLIA. Torr. and J 
- Branching from the base, and diffuse ; leaflets cum 
style filiform. 
Annual, stem smooth, the branches § 
the axils, Leaves, or petioles, an in 
4—6 lines long, A hegee e 
ly strigose undernea 
, hai 
h; the Tainind of - 
ecidui aie. nearly smooth V4 
Pedicels $ solitary and axillary, in = 
Be ‘than the petioles. Calyx much sh 
