316 COM POSIT A - #RIGERON 
* * Submaritime perennial: heads full one inch in diameter: involu- 
cre rather loose, villous with long multiseptate hairs: rays about 100, 
rather broad, aster-like: pappus simple: leaves obovate or spatulate, 
ample, mostly entire. 
E. glaueus Ker. Bot. Reg. t.10. A span to a foot high, viscidulous 
and mre or less pubescent, produc ng a tuft of radical leaves from a rather 
fleshy crown and some ascending monocephalous or occasionally branch- 
ing stems; leaves glaucescent or pale green but hardly glaucous, somewhat 
succulent ; larger radical 3-4 inches long by an inch wide, rarely 2-3-toothed ; 
upper cauline few, spatulate-oblong, obtuse, sessile, 10-18 lines long: rays 
half-inch long, bright violet: achenes 4-nerved. On banks or bluffs of the 
Pacific coast within the influence of salt water, Oregon to southern Califor- 
nia. 
_* * * True perennials from rootstocks or a caudex, neither stolon- 
iferous-surculose nor flagelliferous: involucre from hispid or villous 
t» glabrous but not lanate, in the first species loose and spreading. 
+ Comparatively tall and large, a foot or more high, except in al- 
pine or depauperate forms, !eafy-stemmed, glabrous to soft-hirsute: 
leaves ratner ample, entire pr sometimes few-toothed: heads pretty 
large with usually very numerous rays. 
++ Aster-like; the rays comparatively broad: heads solitary or on 
larger plants few and corymbosely disposed: pappus simple. — 
E. salsuginosus Gray Proc. Am. Acad. xvi, 93. Rootstocks short and 
thickish : stems 7-20 inches high, the summit or peduncles lanate-pubes- 
cent or puberulent: no bristly or hirsute hairs: leaves very smooth and 
glabrous or glabrate, thickish ; radical and lower cauline leaves spatulate 
to nearly obovate, with base attenuate into a margined petiole, 1-3 inches 
long; upper cauline ovate-oblong to lanceolate, sessile, mucronate or apic- 
ulate-acuminate; uppermost small and bract-like: bracts of the involucre 
loose or even spreading, linear-subulate, or attenuate, viscidalous or pu- 
berulous (or at some northern stations sometimes pubescent): disk over 
half-inch in diameter: rays 50-70, purple or violet, half-inch or more long. 
Wet ground, Kotzebue Sound and Unalaska and along the higher 
mountains to California and the Racky mountains. 
E. peregrinus Greene Pitt. iii, 166 Aster peregrinus Pursh. Tomentose- 
ubescent and glabrate: stems slender, erect, usually solitary, 1-2 feet 
high, leafy: rootstock slender, creeping: lower cauline and radical leaves 
oblong-lanceolate, attenuate below to a margined petiole, 2-3 inches long, 
upper cauline lanceolate to ovate-lanceolate, entire or shapely denticulate: 
head solitary, or rarely 2, half-inch or more high, terminating the simple 
stem: bracts of the involucre linear, acuminate, 5-7 lines long, tomentose- 
pubescent or villous, not at all viscid or glandular: rays 20-30, 6-8 lines 
long, pale to dark purple or violet. Wet meadows, Arctic coast and 
Alaskan Islands to the mountains of Northern Washington and Idaho. 
E. Howellii Gray Syn. Fli. Pt. 2, 209. Rootstecks slender: stem 
12-20 inches high, leafy: leaves membranaceous, glabrous and smooth; 
radica’, slender, petioled, with oval or obovate blade; cau!ine mostly ovate 
with b oad half clasping base, 1-2 inches long by an inch broad ; mucronate- 
acuminate: peduncle puberulent: heads solitary, 8-10 lines broad: bracts 
of the involucre subulate, the inner ones acuminate: rays only 30-35, 8-10 
lines long, often 2 lines wide, white. Moist rocky banks along the Colum- 
bia river near the Cascades. 
E. cervinus Greene Pitt. iii, 163. Stems slender, 8-12 inches high, from 
s‘out ascending rootstocks, leafy at base, the whole herbage glabrous, 
only the peduncles: and involucre glandular and slightly puberulent: 
