358 COMPOSITZ . HOLSEA 
ACTINELLA 
C. Douglasii H. & A. 1. c. 354, Pubescent with a fine somewhat floc- 
_ cose or pannose tomentum, or sometimes early glabrate: stems stout, 6-18 
inches high, paniculately branched: leaves mostly of broad outline, and 
bipinnately parted into crowded short obtuse divisions and lobes: heads 
6-9 lines high, in large plants numerous and corymbosely cymose,: bracts 
of the involucre linear or spatulate, obtuse: marginal corollas not distinctly 
larger nor ditferent from the others: palez of the pappus from linear-ligu- 
late to narrowly oblong, 4-6 lines long. Rocky hillsides and dry plains, 
Brit. Columbia to California Montana and New Mexico. 
Var. alpina Gray Syn. Fl. i, pt. 2, 341. ‘‘ Dwarf, 3-5 inches high, 
consisting of a rosette or thick tuft of leaves with very close divisions, and 
naked or scapiform stems, bearing mos‘ly solitary heads surmounting the 
subterranean branches of a multicipital perennial caudex or rootstock. 
Alpine region of the Rocky and Cascade Mountains. ”’ 
66 HULSEA T. & G. Bot. Mex. Bound. 98. 
Viscid-pubescent and balsamic-scented herbs with alternate 
mostly sessile leaves and solitary or scattered large heads of yel- 
low flowers, or the rays sometimes purple. Involucre many- 
flowered, hemispherical, its thin herbaceous bracts in 2-3 series. 
Receptacle flat. Rays numerous, ligulate but sometimes short 
and inconspicuous; disk-corollas with proper tube slender, but 
shorter than the cylindraceous throat. Style-branches short and 
with thickened obtuse tips. Achenes linear-cuneate, compressed 
or somewhat tetragonal, soft-villous. Pappusof mostly 4 truncate 
wholly hyaline scales. 
H. nana Gray Pacif. R. Rep. vi, 76, t. 13. Villous-hirsute when young: 
stems stoutish, bearing a single large head, 2-8 inches high, from a long 
branching rootstock : leaves mostly radical, 1-2 inches long, oblong-spatu- 
late, pinnatifid or incised, mostly tapering below to a margined pointes 
involucre 6-8 lines high. of lanceolate acute bracts: rays about 30, broad! 
linear, 6-8 lines long: scales of the pappus usually longer than the breadt 
of the achene, incisely or fimbriately lacerate. In valcanic ashes and scorie, 
Mount Adams Washington to Mount Shasta California. 
67 ACTINELLA Pers. Syn. ii, 469. 
Mostly low herbs with alternate narrow or narrowly lobed leaves 
and slender-peduncled heads of yellow flowers. Heads (in ours), 
radiate. Involucre many-flowered, campanulate or hemispherical, 
its bracts in two or more series, somewhat herbaceous or coriace- 
ous, often rigid, the outer ones sometimes united. Receptacle 
from conical to convex, naked. Rays fertile. Style-branches of 
disk-flowers dilated, truncate and somewhat penicillate at tip. 
Pappus of 5-12 thin and mostly hyaline scales with more or less 
manifest costa, or none. 
A. Richardsoni Nutt. Trans. Am. Phil. Soc. vii. 379. Stems tufted 
from a multicipital perennial caudex, 8-12 inches high, obscurely puberu- 
lent or nearly glabrous, woolly in the axils of the radical leaves: upper 
leaves mostly once and the lower twice ternately parted into long and sim- 
ple filiform-linear rather rigid lobes : involucre campanulate, 2-3 lines high, 
6-9-angled, the 6-9 outer bracts strongly carinate, united below: rays cu- 
neate, 2-4 lines long: scales of the pappus attenuate-acuminate. Plains of 
eastern Oregon.to Nevada Utah and the Saskatchewan. 
