A FASCICLE OF SENECIOS. 123 
either very short-peduncled or subsessile and scarcely ex- 
ceeding the subtending foliage, solitary or 2 or 3 at the end 
of the main stem, certain lateral and widely divergent 
branches, equalling the main axis and very leafy, usually 
sterile: rays short, not as long as the diameter of the head: 
achenes short, canescent with a minute strigulose pubes- 
cence. 
Alpine on the mountains of southern Colorado; collected 
by me in 1896, on Little Ouray Mountain, at Marshall Pass, 
and now, in 1899, obtained in quantity by Mr. C. F. Baker, 
near Pagosa Peak, at 12,000 feet altitude. A decidedly suc- 
culent plant, exhibiting an excess of large carthamus-like 
foliage, and very few heads. The achenes in S. Fremontii, 
if I rightly identify this as the plant of northern Colorado 
and adjacent Wyoming, are distinctly angular, and puberu- 
lent between the angles; but in S. carthamoides the angles, 
if present at all, are hidden by the dense uninterrupted in- 
dument of short appressed but stiffish hairs. 
S. BLiTOIDES. Allied to the preceding, quite as tall, the 
numerous stems from a firmer and more woody rootstock, 
all the branches floriferous and the heads on rather long 
and slender peduncles borne well above the leaves: leaves 
an inch long or more, from spatulate-oblong to obovate-ob- 
long, sessile and half-clasping, coarsely dentate: heads on 
bracted pedicels of 2 or 3 inches long, rather more than } 
inch high, the diameter less, the rather numerous rays well 
elongated, somewhat over } inch, deep-yellow: achenes 
narrow, slightly contracted at apex, very glabrous and 
striate. ; 
Collected at 12,000 feet on Mt. Elbert, middle Colorado, 
28 Aug., 1899, by Mr. Theo. Holm; the species interme- 
diate, as it were, between true S. Fremontii and S.carthamoides, 
yet with perfectly glabrous achenes. It may exist among 
other collections from Colorado, but I have not hitherto met 
with it except in this recent collection by Mr. Holm, who 
