310 COMPOSIT A AST HR 
lanceolate. to oblong or the lower spatulate, entire 6r ii@arly so, 2-6 
inches long: heads 5-6 lines high, often solitary: bracts of the involucre 
lanceolate to linear, nearly equal, the otiter conspicuously foliaceous and 
spreading or sometimes more imbricated and squarrose:- rays violet to 
purple, 6-10 lines long. Along streams and in wet mountain meadows, 
Alaska to California and the Rocky mountains. Thefollowing varieties are 
perbaps good species but material is not how at hand for a thorough study 
of their character. 
Var. frondeus Gray Syn. Fl.i,Pt. 2,193. Stems simple or with spar- 
ing erect flowering branches, sparsely leaved: leaves comparatively am- 
ple, 4-5 inches long, the lower tapering into winged petioles, upper often 
with clasping base: heads solitary or few, naked-pedunculate, broad: in- 
volucral bracts linear-lanceolate, loose and not fabric: all equalling the 
disk occasionally the outermost broader and leaf-like. Subalpine in the 
Cascade and Rocky mountains. 
Var. apricus Gray,l.c. Stems clustered, ascending from tufted root- 
stalks, 10-18 inches high, bearing solitary or 2-3 broad heads: leaves 
thickish ; involucral bracts all alike, somewhat spatulate-linear, obtuse or 
acutish: rays deep blue-violet. On dry ridges, of Mount Adams, Washing- 
ton, at 6000 feet. 
A. Burkei A. feliaceous var. Burkei, Gray,1. c. A foot or two high, 
rather stout, simple or branched above, leafy to the top: leaves thickish, 
very smooth, ample; upper cauline mostly oblong, and with broadly half- 
clasping usually auriculate base: heads solitary or several very broad: in- 
volucre of oblong or spatulate and obtuse, loosely imbricated bracts, the 
oute: commonly shorter, or outermost sometimes more foliaceous and 
equaling the disk. On Simcoe mountains, Washington, to the Rocky 
mountains and New Mexico. 
A. Eatoni. A foliaceous var. Eatoni Gray,1 c. Rather tall, 2-3 feet 
high, branching: heads numerous, ratner small, paniculate or glomevate: 
leaves rather narrow lanceolate: involucre loosely imbricate, outer and 
sometimes inner bracts foliaceous, erect or squarrose-spreading. In open 
ground or woods and along streams of British Columbia to California, 
Montana and Nevada. 
-- A. militarius Greene. Minutely tomentose, at least on the underside 
of the leaves and the inflorescer ce: stems rather slender, 1-2 feet high: 
leaves narrowly lanceolate, 1-6 inches long, acute, narrowed below to a 
broad petiole, those of the branchlets small and passing into bracts: 
heads numerous, in close panicles, about 6 lines high, its linear-lanceolate 
or almost subulate bracts in several ranks, the outer successively shorter 
and passing into the ordinary bracts of the branchlets, all acute, the inner 
with distinct. white margins: Rays 6-8 lines long, purple: achenes 
sparsely hirsute: pappus rather copious, sorded. Along ditches and small 
streams, Rogue River Valley, Oregon. ) 
A. Cusickii Gray Proc. Am. Acad. xvi,99 Soft-pubescent through- 
out or sometimes approaching to glabrous: stems 1-2 feet high, simple or 
corymbosely branched, leafy to the summit: leaves thin, nearly entire, 
oblong-lanceolate or oblong; upper ones moderately contracted above the 
deeply cordate clasping base; lower ones with more elongated narrow 
lower portion or winged petiole, with dilated but smaller auriculate clasp- 
ing insertion: heads large and broad, terminating the stem or short leaty 
branches: involucre very foliose-subtended and loose, the larger and 
broader lanceolate outer bracts fully equalling the inner: rays numerous, — 
narrowly linear,nearly half-inch long,pale violet: achenes glabrous. Along 
subalpine streams of Eastern Oregon and Idaho, 
Var, Lyalli Gray Syn. FI. 195. Villous with soft. pubescence: stems: 
