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2-4" high: stemgseveral to many, from athick woody base, strictly 
erect and so mi What fascicled, grayish with a thin tomentum, the 
annual twigs a rising from near their summit, these also fascicled- 
erect, slender and yellowish-green: leaves erect, linear-filiform, 
very acute, canaliculate, green and glabrate, 3-5” long: heads 
small (about 1™ high), in small fastigiate cymes: bracts oblong, 
abruptly sub-acute, only two or three in each vertical row, the 
scarious margins ciliate-pubescent: corolla sparsely short-hairy, 
divisible into three equal regions (tube, throat proper, and a tran- 
sition region); lobes more than half as long as the tube proper, 
distinctly glandular-thickened at apex: pappus rather sparse: 
style appendages longer than the stigmatic portion, at length 
exserted : the short akene finely pubescent. 
The erect habit of stems, the twigs and leaves, the greenish aspect, and 
numerous but small flower clusters mark this as peculiarly distinct from the 
other species of this range. It is abundant on stony slopes in the Bear river 
hills, near Evanston. Type number 4105, July 27, 1897. Represented also 
by M. E. Jones’ no. 6040, distributed unnamed. 
CurysoTHAMNus puMILus Nutt., Trans. Am. Phil. Soc. 7: 323: 
1840.—The recharacterization by Dr. Greene,’ after every poss! 
ble effort has been made to settle what was the original of the 
species, is of noticeable service to us all. This common and 
Somewhat variable species is now recognizable. It is well repre= 
sented by the following numbers from various parts of Wyoming : 
617, 903, 1121, 1 197, 2883, 3524 and 5398. The last, from 
Hutton’s lake, September 7, 1898, is typical so far as I am able 
to judge. 
- 
CHRYSOTHAMNUS PUMILUS varus, 0. var.— Smaller than the © 
aos: only 1-3 high, the shrubby base divaricately scragey 
branched, the season’s branchlets slender, very numerous, 5—15 
long, with a whitish or straw-colored bark: leaves glabrous 
xcept for an obscurely scabrous margin, linear, almost filiform, 
‘Erythea 3: 93. 1895. 
