Of the ray mostly dissi milar and Ww 9, 70% : tie N, 
SYNOPSIS OF THE FLORA OF COLORADO. 73 
lanceolate, daploely toothed; heads panieculate ; scales of the exterior in- 
about 2 
voluere about 20, linear- lanceolate, hirsute (as well as the peduneles) 
longer than the interior ; ne um Oval, hispid-ciliate, 2-toothed at the 
summit.”— Parry, 
BIDENS FRONDOSA, tetas City, Brandegee. Introdueed. 
BIDENS CHRYSANTHEMOIDES, Mx.—Plains near Denver, Dr. Smith. 
BIDENS BIPINNATA, L.—Ute GR Porter. Introduced. 
BENS TENUISECTA, Gr., Pl. Fendl., 86. Annual, uearly glabrous; 
Stem 1°-2° hig gh; very smooth, terete, branching, ascen¢ ding ; branches 
striate- angled, wit 3 heads at the’ naked sun nmits ; leaves opposite 
or al ternate, HiniAntae per ted or biternately divided, segments bneite 
very entire or 2-3 lobed, a little eon lek the rachis; “scales of the 
hirsute srvolhets ‘linear; rays 5-8, ispicuous, scarcely equaling 
the disk’; ; achenia attennaite nea ar, glabrons somewhat 4- angled, striate, 
awns 2, shor t.—Huertano County, @ 
KeMiNSTA! ENCELIOIDES, Cav. A ‘ast cinereous-pubescent; stems 
stout, striate, 3°-5° high; br anched above; le ‘leaves S opposite or alternate, 
ovate, ¢ coarsely dentate. serrate, tapering into a long, winged petiole, 
tripli-nerved, paler beneath; heads corymbose on long, naked pedun- 
cles; achenia of the oan slightly villous, aan by a broad wing, 
emarginate at the summit of the dee eply 3-toothed, vetoy Bc, rugose 
opens’ fire 
and wingless. Lh Benebarit around Canon City, Beenie gee 
YSODIA Cll RYSAN THEMOIDES, Lag.—Plains around De sean Colo- 
Tado ‘ia Porter 
AILLARDIA? ARIS TATA, Pursh. Perennial, villous- pabeacey or almost 
Ricesose « “uh jointed hairs; stem simple or branched, 1°-2° high; leaves 
alternate, minutely punctate, radical and lower ones lanceolate, tapering 
into slender petioles, sinuate-pinnatifid or coarsely toothed, minutely ser- 
rate or nearly entire, the uppermost linear or oblong-lanceolate ; sessile, 
usually Gilated at the base, and p ah claspiog: heads large, Ty! —24/ in 
diameter including the rays; involucre hirsute; corollas of the disk 
with short, broadly subulate teeth, of a eerie brownish-purple or maroon 
color; j nays Pa agen! clongated-cumeiform, deep y ellow; chaff of 
oc 
a 
aristze for a pee a distanot; not dilated at he asd! 2-3 times the length 
of the nearly smooth achenia.—Hall & Harbour. Near Denver, B.. 
Range, Red 
een. PINNATIFIDA, Torr. Ann. N. Y. Lye. md p. 214.. Peren- 
HI. Smith. shee a umd Monument Parks, Coulter. Sangre de Cristo 
ed fielo 
1Xtwexnsia, ofa! Heads ey -flowered; the rays ligulate, a single series. 
Seales of the i vale ‘re somew in 2 series, Seca Pe Riehl apreeeae: 
tacle ce tes ex} the chaff lanc nhitetas me embran Suing embracing the flowers. Tube 
Cep 
of the corolla hispid. Bran of the style in the disk-flowers appen nipsalete: 
pic ches 
Praia of the disk flat ( compressed laterally, ) winged, so aneAnee * Bt ee ar- 
gate at the pensp iti with 2 setifor mn 
: §@airanbta A, Fong. Heads mnany-Hlowered, radia 
‘gle series, i : f th v 
bran ed scales, the 
corolla. T. § G. Fl. Ne NA : 
