70 BOTANICAL INFORMATION. 
Platte, scarcely seen at the Kooskooskee. Flowers with 
the fragrance of Cheiranthus Cheiri. June. (n. 153.) 
1. Paehypodium integrifolium, Nutt. in Torr. et Gr. Am. 1. 
p. 96. 
Has. Sandy inundated places, valley of Upper Platte and 
Sweet Water River, growing with Cleome integrifolia and 
Asclepias speciosa. July. (n. 234.) This has been also 
found abundantly by Mr. Tolmie; and by Mr. Douglas 
during his last journey in the Oregon territory. 
1. Vesicaria alpina, Nutt. in Torr. et Gr. Am. 1. p. 102. 
Has. Sunny calcareous cliffs; hills of Upper Platte, near the 
* Chimney Rock." June. (n. 60.) Mr. Nuttall seems to 
have discovered it on the same spot, and it appears to have 
been found in no other locality, and by no other Botanist. 
A beautiful and very distinct species. 
2. V. Ludoviciana, DC. Torr. et Gr. Am. 1, p. 101.—Alys- 
sum Pudovicianum, Nutt. Gen. Am. 2. p.63. Myagrum 
argenteum, Ph. : 
Has. Gravelly calcareous hills of Upper Platte, towards the 
Black Hills :—partly prostrate. July. (n. 278.) 
3. V. Geyeri, Hook.; perennis, stellatim incana, radice fusi- 
formi, caulibus e collo numerosis, folis longioribus radi- 
- calibus suborbiculatis longe petiolatis, foliis caulinis lanceo- 
latis sessilibus sparsis, siliculis late obeordatis bilobis com- 
presso-inflatis stylum longitudine æquantibus. (Tas. V. 
Has. Sunny sandy declivities on elevated beca Po cx 
|» Upper Spokan River. April. (n. 476.) ie a 
A new and very remarkable species, with e the Bibi x 
of V. E ially in the mode of growth and in 
the radical leaves; but the fruit is totally different, though — 
somewhat membranaceous and inflated, and two-lobed; itis - 2 
broadly obcordate, densely stellate, pubescent, two: lobe E. 
compressed, of so membranous a texture that the pericarp — 
shrinks or falls in between the four seeds. (two in each. cell), d 
rendering the surface very unequal. The style is as long as the - 
silicule—(Tas. V. Fig. E Portion of a — uh 2. decre ^ : 
f. 3. Seed.) 
