SYNOPSIS OF THE FLORA OF COLORADO. 61 
petioles, entire and oblanceolate, cauline ones sessile, smaller, oblong- 
linear or linear-spatulate ; heads few or many, rather small, terminating 
the branches, pedun culate ; involucre hirsute- canescent ; rays very 
many es hie white or pale- red, narrowly linear, twice as ‘long as the 
involuer re; sce Gee minute ree pubescent; 3; pappus simple and wholly 
deciduous Wore ‘oad and white epigynous disk.—Plains and moun- 
tains. South Park, Dlandl. Colorad o Springs, Porter. 
ERI ON MACRANTHUM, Nutt. Pubescent or nearly smooth; stems 
v7 hi: ch, several from a creeping rhizoma, leafy to the summnit; leaves 
ooth or hairy, ciliate on the margins, obtuse, acute or acuminate, 
inderonate, entire, the lowest cblong-spatulate, t tapering into a petiole, 
2’-4' long, hae pepe og be oblong or bro badly ribet lanceolate, 
heads several, 3-13, ¢ ory rabowe, sometimes very eres 3 iat ucTe o many 
very narrow- ‘linear, acuminate, herbaceous, glabr n walen 
which are sometime pubescent; rays blu urple, humerous achenia 
2-3 nerved, slightly hairy; outer pa ort, setze.— Varies 
greatly as to the amo escence.—So é d Chiaun Caton, 
Porter. Pike’s Peak and mountains west of Denver, Canby. Twin Lakes 
and in ten Sierra Madre Range, Coulter 
ERIGERON GLABELLUM, Nutt. Pibescsiit or nearly glabrous; stems 
oy “50° hich, single or few from a short erect caudex, simple or spari ingly 
corymbose at the summit; radical leaves narrowly or broadly spatulate, 
tapering into a long or ‘short t petiole, sometimes serrate or incisely 
toothed; lower cauline ones oblong, lanceolate, tapering into long, peas’ 
gined petioles, the upper ones seattered, lanceolate or linear, sessile a 
partly clasping; heads few, large, 10-15” broad, on long, strict hostile 
nlar 
which are enlar ree ed above; rays very harrow and nu au hing poeghee se 
hirsute or nearly eka ’ achenium. “ae ait as in the last.—Hall 
& Harbour, 240. Cation City, Brandegee. ainy Peak, Dr. Smith 
ERIGE ERON Cob sti: Porter, (n. sp.) Stem aeiols from a sist root, 
‘12/ high, bearing a single head, smooth below, pilose-pubescent above, 
leafy to the top; leaves thinnish, pubescent with ciliate margi 
more or less serrate-denticulate, mucronate, erect, gradually ditiuishing 
in size upward; lower ones oblong. spatulate or elliptical, tapering into a 
margined, ciliate petiole, upper ones oblong or lanceolate, acute or acumi- 
hate, sessile and partly clasping; head large, 1/-2’ broad including the 
rol . ere a 
numerous ays; involucre about 9” broad, hemispherical densely 
pilose but scarcely w y; scales lance-linear, with scarious margins, tips 
elongated, subulate, spreading, glandular; acheni pubescent; bristles 
of the pappus minutely scabrous, outer ones short and few; alveoli of 
tne receptacle rough, ses lacerate margins.—Weston’s Pass, at 10,000 
feet altitude, July 19, 
ERIGERON PUMILUM, ‘Nu tt, Very hirsute with spreading hairs, stems 
6-10’ high, rather stout, numerous from an erect, branching caudex, 
Simple or sparingly branched, bearing 1-3 peduncled heads, leafy; lower 
leaves linear-spatulate, 2’-24’ long, 1/’-3” wide, upper ones narrowly 
white, t 
ice nearly three times as long as the i involucre; achenia 
s 
sight hairy outer pappus of minute subulate bristles.—Upper can- 
Sas, Porter. Saint Vra Coulter. 
rain River, 
_Emtannon DIVERGENS, T. & G. Spindahat hoary with a minute hir- 
te pnbesence, diffusely branched from the base, branches ascending, 
