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HEL TANTHOS COMPOSIT A 843 
COREOPSIS 
In moist meadows, southern Oregon*and northern California, 
§ 2 Perennials. Receptacle convex to low-conical. Lower 
leaves almost always opposite. Disk-flowers yellow with dark 
anthers. 
H. Nuttallii T- & G. FI, ii, 324. Stems slender, 1-4 feet high, common- 
ly simple: leaves lanceolate or the upper linear, broader toward the base 
and tapering to an acute or acuminate apex, serrulate or entire, 3-6 inches 
long by 8-9 lines broad, short-petioled or subsessile, scabrous both sides, 
in small plants not rarely all opposite: heads half-inch high or more: 
bracts of the involucre naked, or somewhat hirsute at base, lanceolate-sub- 
ulate, attenuate, fully equalling the disk, herbaceous, loose or soon squarr- 
ose-spreading: rays about an inch long: palez of the as Sp long and nar- 
4 tas damp places, eastern Oregon’to Brit. Columbia and the Rocky 
ountains. 
H. Cusickii Gray Proc. Am. Acad. xxi, 413. Stems numerous from a 
thick perpendicular resiniferous root, forming clumps, at length resting on 
the around in an entangled mass, about a foot long: leaves mostly altern- 
ate, linear-lanceolate, entire, obtusish, attenuate at base but sessile : invo- 
lucre about half-inch high, its linear-lanceolate bracts hairy-ciliate, acu- 
minate, lax: rays 1-14 inches long: achenes glabrous: pale of the pap- 
pus oblong-lanceolate. On dry hills and sage-brush plains, eastern Oregon 
and Washington. 
H. tuserosa L. Sp? ii, 906. (JERUSALEM ARTICHOKrF). Stems usually 
pubescent or hirsute, 5-10 feet high, branching at the top: leaves mostly 
alternate on the branches and on the upper part of the stem, ovate or sub- 
cordate, sometimes oblong, acuminate, thickish-membranaceous, dull green 
minutely pubescent and eccasionally cinereous beneath, soon scabrous 
above: bracts of the involucre lanceolate, attenuate-acuminate, hirsute, at 
least the margins toward the base: rays 12-20, often 144 inches long: chaff 
of the receptacle hirsute-pubescent on the back: achenes more or less pu- 
bescent: horizontal rootstocks enlarging at the apex into tubers’ which are 
sweet and edible. Escaped from cultivation and becoming common along 
Rail Roads. , 
Subtribe iv, Bidentidex Less. Syn. 229. Achenes obcompressed or 
sometimes terete and the subtending chaffy bracts flat or barely con- 
cave. Ray-flowers ligulate, neutral, or wanting; disk-flowers herma- 
dite and fertile. Style-tips of the disk flowers produced into a cusp 
or cone or sometimes truncate. 
44 COREOPSIS L. Gen. n. 981. 
Annual biennial or perennial herbs with mostly opposite leaves 
and long-peduncled heads of yellow pink or brown ray-flowers. 
Involucre usually hemispheric, its bracts in 2 distinct series, all 
united at base, those of the outer series commonly narrower and 
shorter than theinner. Receptacle flat or slightly convex, chaffy, 
the chaff flat or concave, Ray-flowers neutral ; those of the disk 
perfect, fertile, their corollas with slender tube and broader 5- 
toothed limb. Anthers mostly entire at base. Style-tips trun- 
cate or subulate. Achenes flat, orbicular to oblong, winged or 
wingless, 
C. Atkinsoniana Dougl. Lindl. Bot, Reg. t. 1379. Glabrous throughout : 
biennial : stems stoutish, 1-4 feet high, with numerous opposite branches: 
al 
