Enumeration of Plants of the Rocky Mountains. 243 
simple or simply forked hairs, far more bristly than in D. 
vith i i of the 
Ts 
inet, oblong or oblong-lanceolate, the upper ones on their upper face, 
@ the upper part of the stem, sometimes becoming glabrous. Ra- 
auger, the any 0 
gg and with only one or two twists: the style 1} to nearly 2 lines 
g. 
N°. 8, of Bourgeau deren 
4 oes em gathered in the Rocky Mountains specimens agreeing with 
2 é * . 
» plane or slightly twisted silicles, the style from a line toa line 
tnd ahalf in length. But, as in other Craciferous plants, no great reli- 
No. 43, p. 10, and in coll. ige- 
low, Pacific R. R. Rep. iv, p. 66,—both ramose forms), the style is quite 
g a8 in D, streptocarpa. I have seen no Greenland specim 
beg oraba alpina, L.; a form apparently of this species, with one or two 
$s on the scape, and a rather conspicuous th 
97, yet _ snowy, Fang. 
on i Arabis hirsuta, Scop. 
aa Cardamine cordifolia, Gray, Pl. Fendl. 
' Sisymbrium canescens, Nu get 
BEE vagal hysaria did: ( Vesicaria didymocarpe, Hook.): 
pet is fructiferis elongatis; siliculis minoribus corragatis minus 
ai “Dry gravelly bluffs of upper Clear Creek, growing bunches 
othe a oy cP hae 9 ate a sar If so. it 
isa; 8, of which it is probably only a moun AT 80, 
 femarkable one. There ie aaa blished species, P. seat allied 
baa 1. Geyeri, collected by Dr. Newberry in the interior of New Mexico. 
z a. Lrysimum asperum, DC. the form with orange-colored flowers, 
~ Arkansanum, Nutt., collected on the plains. 
