NOVITATES OCCIDENTALES. 293 
and mucronulate: petals round-obovate, not unguiculate, 
white: filaments very short; anthers dull red: ovary very 
broad at summit, depressed and even slightly concave: car- 
pels not known. 
In wet springy places at about the same elevations as the 
preceding, in the Californian Sierra. Readily distinguished 
from S. integrifolia by the firm almost coralline dense mass 
of bulblets from the midst of which spring the leaves and 
scape. But being a much smaller plant than S. integrifolia, 
such specimens of it as are extant in herbaria may well be 
sought among those of S. nivalis. 
Arabis atrorubens, Suksdorf in herb. Perennial, erect, 
a foot high, pale and glaucescent or the herbage becoming 
purplish in full maturity: radical leaves spatulate-oblong, an 
inch long, stellate-pubescent; cauline ones glabrous, ovate to 
ovate-lanceolate, sessile and auriculate-clasping, all rather 
remotely and coarsely serrate-toothed: raceme simple, strict, 
few-flowered: sepals and petals (the latter twice the length 
of the former) dark-red, the sepals sparsely pubescent with 
short branching hairs: pods suberect, narrowly linear, acute, 
3 inches long or more: seed flattened, narrowly wing-~ 
margined. 
A beautiful species, obtained by Mr. Suksdorf on rocky 
summits of mountains in Klickitat Co., Washington, May, 
1892. 
Senecio lactucinus. Glabrous throughout; stems soli- 
tary, erect from a perennial root, a foot high or less, leafy at 
base, gradually less so above, at summit thyrsoid-paniculate: 
radical leaves oblong-ovoid, 2 or 3 inches long, tapering to a 
narrow winged petiole of equal length; cauline spatulate, 
sessile, auriculate; all coarsely irregularly and somewhat 
runcinately dentate: heads numerous, small, few-flowered; 
involucre not calyculate-bracted, the scales about 7: rays 
Dry shades at the northern base of high rocks near Sher- 
man, Wyoming, 1 Aug., 1893. Plant quite resembling, when 
