TST Ste 
SYNOPSIS OF THE FLORA OF COLORADO, Tt 
io ae 8 the middle point much the strongest and dark-colored ; 
chenia finely appressed-pubescent ; penis of two lanceolate, chatty 
ns.—Plains near Denver and Colorad OROrIUESs Porter ; Dr. Smith. 
Cation City, Brandegee. Along the Platte, Cor 
HELIANTHUS ORGTALIS, at Stem tall, pics high, very smooth ; 
leaves very numerous and narrow, linear, 3/— 6! long, 1/’~2” wide, flat, the 
lower remotely dentie culate, Hee nerv ved, slightly if at all ccaerauat heads 
5-7, corymbose, on Jong p ceils dad rather large; scales of the involuere 
lax, attenuate- subulate, oes nt the disk; rays about 15, 1/ or more 
long; chaff of the rece ptacle, Soca subetneiform, chat hat ciliate at 
the apex; pappus of 2-4 awns; achenia glabrous—Parr, 
HELIANTHUS RIGIDUS, De si Hall & Harbour; Dr. Aéthe Canon 
City, Brandegee. Platte River, Cou 
HELIANTHUS PUMILUS, Nutt. (? : “sil Jour, (N. 8.) Vv. 33, p. 10. 
Stem 1°-3° high, hispid, bearing a few heads; leaves o opposite, ovate- 
lanceolate, sub- entire, cinereous-hispid, (when young, covered with res- 
inous atoms,) tripli-nerved next the base, short-petioled, uppermost 
laneeolate, pel Bei sile, often alternate; involucre a little shorter than 
he di ‘ is i 
out ; the upex 
sparsely hispid-ciliate; chaff of the pappus subulate, a little shorter 
than the corolla, with smaller ones interposed on the outside, and mar- 
gins appressed-hispid.— Hall & Harbour, 269. 
HELIANTHUS GIGANTEUS, L.—Canon City, Brandegee. Denver, Dr. 
Smith. The form with opposite narrowly- vighaom gee and long-acumi- 
nate leaves, and long, narrow, foliaceous involucral s 
HELIANTHELLA! UNIFLOoRA, T, & G. Stem and caves clothed with 
a short and soft, somewhat- cinereous pubese ence, 2°-3° high; leaves 
broadly lanceolate, 4-6 long, 1/-2’ wide, pointed, 1 narrowed at the base, 
mostly opposite, lower ones petioled, all nerved above the base; heads 
solitary or with 1-2 from the upper axils, on long peduncles, 2/-4’ broad; 
inyoluecre leafy at base, scales lanceolate, ciliate-hirsute; chaff of the 
slightly convex receptacle closely conduplieate, delicately scarions, pu- 
bescent at the tip; achenia 2-winged, ciliate and pubesc sens crowned 
with 2 long awns and 2-4 intermediate Hecersiti squamelle; rays 15-20, 
pale yellow. —Hall & Harbour, 268. Cation City, Brandegee. Near Den. 
ver and Horse Shoe Ps Coulter 
TE an (eegmcbs ¥1, Ors Proe, And. Phii., March, 1863, p.63. Note. 
Hirs stem aoe » thickened root; radical leaves narrowly 
Roda te. hispidly-ciiae, . evi acute, 6/ long including the petiole, upper 
ae ine ones sublinear, 1/~ 2’ long; | eads , Sinall, somewhat nodding, 
n Short or elon tigated guitasivlda. scales of “ihe involuere linear-lanceolate, 
ig: ae bares inner ones exceeding the disk, i chatt 
of the ales ange slightly scarious, ‘barbula te on the truncate apex; 
achenia oblong, a wnless, erowned with hyaline squamellke whieh are re- 
solved into a v site dringe that equals the oe tube of the ¢ corolla in 
'HELIANTHELLLA, Torr. & Gr. Heads many-flowered ; the ray-flowers 10-24, neutral ; 
those of the disk perfect. Scales of the iny olucre linear ‘- r lanceolate, in about 2 series, 
: oliaceous, Chaff of the receptacle persistent, embracing the achenia. 
Corolla of the disk cylindrical, elongated, 5-toothed, with a A 
sry hispid, more or less obtuse. Ovary compressed, with one or 
th margins slightly winged anc 1 pro nit need at the wath into a short auriculate and 
persistent be. ok awn, sometim: eet » squamelle, 
obscure coroniform c, glare us, or cliate-—Perevial herbs, with linear or 
of scattered at entire leaves, and solitary showy iene termi- 
or branches. - Pre e. Fl. N, Am. 
