104 PITTONIA. 
voluere densely woolly-hirsute and viscidulous; rays none; ' 
disk-corollas ochróleucous, the tube hirsute, the teeth with 
a tuft of pilose hairs at tip: achenes glabrous, minutely 
resinous-dotted ;/ pappus white, barbellulate-scabrous. 
An Oregonian species, hitherto confused with A. discoidea 
which has cordate slender-petioled leaves, and hirsute or 
hispidulous achenes, 
_ ARNICA SUBPLUMosa. Two feet high, glandular-pubescent 
above, below glabrate, or roughish with short curved hairs: 
lower leaves lanceolate, acute, denticulate, tapering to a 
winged/ petiole; cauline gradually smaller, sessile: heads 
about 3, short-peduncled : disk-corollas narrow-funnelform, 
the tábe glabrous or nearly so: achenes glabrous, or with à 
few 'short hairs, seldom with a few glandular dots; pappus 
short, fuscous, subplumose. 
/Subalpine woods of the Colorado Rocky Mountains. Has 
"passed partly for A. Chamissonis and apparently partly : " 
/ A. longifolia; but its sordid almost plumose pappus i$ 4 
good specifie character; its gradually diminishing cauline 
leaves is another; moreover, A. Chamissonis has a fine dense 
almost tomentose indument. 
ARNICA Sonnet. Two feet high, leafy at base, the upper 
2 or 3 pairs of leaves much reduced and remote; the lower 
and radical ones with broadly lanceolate evenly and saliently 
dentate blade 3 to 5 inches long, on a strongly villous-lanate 
petiole of 1 to 3 inches; herbage in the main loosely and 
scantily villous; heads 3 to 7, peduneulate: involucre cam- 
panulate, 4 inch high or more; the linear-lanceolate bracts 
loosely hirsute: rays (occasionally wanting) numerous, 
golden yellow: disk-corollas rather narrowly funnelform, 
the tube and throat pilose: achenes glabrous below, distinctly 
hirsute above the middle: pappus dull-white, barbellate. : 
Species of strongly marked habit and foliage, obtained by 
Mr. Sonne in the mountains of California above Truckee 
It is most related to A, Parryi. : 
