120 PITTONIA. 
reason that it is much more suggestive of Taraxacum than 
is the other; but it is by no means as common as the next. 
I never met with it in my own explorations, and so have 
never seen it growing, though the other I am familiar with 
in the field. The specimens of S. taraxacoides examined by 
me recently are the following: Hall & Harbour's n. 317, as 
represented in the U. S. Herbarium (contains one specimen 
of this, and two of the one next to be described ): Pike’s 
Peak, at 13,500 ft., Chas. S. Sheldon, 1884, also from the 
same locality, by Canby, in 1895: Carl F. Baker, Cameron's 
Pass, in northern Colorado, at 11,500 ft, in 1896 ; Theo. 
Holm, at 13,000 ft. on James’ Peak, 1899. 
S. Horum. S. amplectens, var. tarazacoides, Gray, l. c. in 
part. Commonly 6 inches high, the stoutish stems mostly 
several from a branching rootstock, leafy at base only, the 
peduneuliform stem with only 1 or 2 reduced leaves; stem 
and petioles of a vivid red-purple at and near the base, the 
whole thickish and somewhat fleshy herbage appearing 
glabrous, a lens revealinga very sparse and minute hirtellous 
hairiness at base of involucre, on the peduncles and occa- 
sionally the leaf-margins: leaves from obovate to obovate- 
and oblong-lanceolate, callous-dentate or denticulate, 14 to 
3 or + inches long, on petioles nearly as long: heads 
I to 4 or 5, large and nodding: rays # inch long or more, 
5 to 7-nerved. 
This, as I have intimated above, is very distinct from my 
S. taraxacoides, though forming perhaps the greater part of 
Gray's variety of that name, and is much nearer S. Soldanel la, 
from which its larger size, long showy rays, and very dis- 
similar foliage, abundantly distinguish it. Itis known only 
from Colorado and Wyoming. Mr. Patterson’s 81, from 
Gray's Peak, in 1885, well represents it. Itake pleasure in 
dedicating it to Mr. Holm, who has lately collected it, while 
NIMM: in a prolonged field study of the Colorado alpine 
ra. 
