402 NeEtson: NEw PLANTS FROM WYOMING 
I propose this species as a segregate from 7. dasyphyllum T. 
& G. That species was described from James’s collections from 
“Summit of the Rocky Mountains.” Specimens from similar 
situations agree with the original in the brownish pubescence, the 
absence of an involucre (usually so at least), and the subequal 
calyx teeth. S. scariosum is a larger plant with whiter, more 
permanent pubescence, a conspicuous scarious involucre, the seg- 
ments of which are marked by a green midrib. Its petals are 
uniformly reddish-purple or shading to violet when fresh, while the 
" petals of T. dasyphyllum differ in color from each other, the stand- 
ard being whitish or ochroleucous, barely tinged with purple, the 
wings and tip of the keel a deep purple hue. The latter, as already 
stated, occurs in alpine stations while 7. scariosum occurs at middle 
elevations, mostly on very stony slopes in the foothills. It is 
often found on naked ledges where the roots find no soil except in 
the crevices. Probably not very rare, at least is not in southeast- 
ern Wyoming. No. 7270, Laramie Hills, June 20, 1900, is taken 
as the type. 
This seems so strangely characterized that one may venture to 
name it in the absence of mature fruit. The inflorescence in 
appearance is much like that of A. Canadensis, but of course it 
cannot even be placed in the same section. 
I have met with this plant but once and then it was found in the 
greatest abundance in the sand dunes of the Red Desert, at the 
base of Steamboat Mt., Sweetwater county, collected June 9, 190M 
no. 7051. 
» MERTENSIA CILIATA longipedunculata 
Size of the species, stems more freely branched, stem and 
branches few-leaved, terminating in long naked peduncles : calyx 
lobes oblong, subacute, ciliate-margined. 
This variety is very common along the streams of ¢as 
Wyoming and apparently occurs at lower altitudes than the spe 
cies. No. 7321, Chug Creek, Albany county, June 39, 1g00, as 
well as many earlier collections represent it. 
tern 
. Mertensia coriacea 
Very leafy from base to summit, tufted, the numerous glabrous 
stems assurgent, 2-3 dm. long: leaves thick, coriaceous, ee 
on both faces except for the flat-topped papillae on the UPP* s 
