\ 
58 SYNOPSIS OF THE FLORA OF COLORADO. 
1-nerved, 1/-3’ long, 3-6” wide, pointed, smooth and glaucous, veins — 
ales of 
prominently reticulated; heads in contracted corymbs; scales the 
involuecre in oes < 4 series, lacerate-fringed, outer ones oval, obtuse, gla- 
brous, inner ones lanceolate, membranous, acute, purple- tin, ged, as long 
as the disk; pa 14-17, purple or pinkish-white ; achenia smooth or 
slightly pubescent. —North Park, Hayden. Eagle River, Coulter. 
ASTER apace ee T. & G.—South Park, Canby. Garden of the 
Gods, Por 
ASTER bain T. & G.— Hall & Harbour, 291. 
T SENDIA! sac men Hook. Eee a from a simple or much 
branched caudex, 1/—2/ high ; leaves spatulate-linear, silky-canescent, 
y concealing 
shorter than the acbariban and 1 or 2 long ones s (sometimes 9 or 10) simi- 
lar to those of the disk flowers; achenium hairy, hairs aaa ia capi- 
tate—Hall & Harbour, 299. Cation peice , Brandegee. 
TOWNSENDIA GRANDIFLORA, Nut Sividaadanbecent; Catia many, 
from an annual root thickened at “the summit, divaricately branched 
from the base, central ones met erect, the lateral decumbent 5/-10’ 
? 
long, often proliferous; leaves 1/-2’ long, somewhat succulent, linear- 
lanceolate, acute, scattered, the uppermost bracteate at the base of the 
eads; scales of the involucre lanceolate, subulate-acuminate, with 
fimbriate-ciliolate margins, rays 25-30, pale lilac, with a short’ pa appus: 
composed of lacerate-denticulate squamelle, rt; achenium 
very sho 
minutely hairy—Hall & Harbour, 289. Plains of the Platte, Coulter. 
Colorado Springs, Porter; Redfield 
MACH HRANTHERA? (DIETERIA) PULVERULENTA, Nees. Canescently 
puberulent ; stems Pe high, much branched from the base, branches 
spreading, beari w heads on rather naked branchlets; lower leaves 
ring fe 
baie spinulose-serrate, upper ones linear, becoming entire 
of the hemispherical involucre linear or lance-linear, very acute, imbri- 
“ee 
'TownsenpDia, Hook. Heads large; the rose-colored or whitish rays in one ccna 
Aeon long, » pistillate, sometimes infer ertile; disk-flowers perfect, with tubular obconic 
B 
5-toothed ¢ anches of the style lanceolate, acutish, hairy towards the ends. 
Invi hemispherical b: 0 rather large, imbricated 2 
appre:sed, sea argined, lacerate-fringed and often ti scales, Achenia flat- 
tened, pub or hairy, 2-3 nerved. Pappus of numerous stout barbellate bristles, 
that of the ray commonly shorter, or eee in part or wholly to short subulate bris 
tles or little seales.— stemless o: pimeiontin, annual or perennial herbs, with 
crowded, pp or cet entire radical le N 
east of the Sierras, from the Saskatchewan to Ne w Mexic 
Peale tee THER < re Ase eads many-flowered; the tate conspicuous, isthe 
‘tile, in one species a disk-flowers perfect, the corolla tubular, 5-toothed. In- 
Volucre 0 ovoid-hemispheri cal, the scales imbricated in several series, oblong or linear, 
or recurved herbaceous points. Receptacle flat, honeycombed, = 
cells Selip 1 toothed ed ges . Appendages of the style narrowly lanceolate, minutely 
i pu erous Vé 
t orm app Pappus. ry 
unequ nap seabrous and rather rigid bristles; that of the ray flowers somewhat ahortet: 
Achenia cbovate-fusiform, slightly compressed, indistinetly striate, pubescent or silky~ 
Herbs annual, biennial, or perennial, with branebi hing stems pa os pinnatifid, t toothed, or or 
even entire leaves. Genus very near to eed but may be easiest distinguished from 
it at, the unequal pappus of disk and ray. onsists of four spec rt found in the region 
ending from Oregon to Colorado and suitabeate to Mexico. 
Fee 
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