72 SYNOPSIS OF THE FLORA OF COLORADO. 
length; involucre 6” long; disk 6” broad; ligules 7/’-9” apie 
Ute poe Porter. South Park, Coulter. Central Cit ity, Gre 
HELIOMERIS! MULTIFLORA, Nutt. Jour. Acad. Phil., (N. ¢ 54 ». 171: 
stane ter from a woody root, 1°-2° high, simple or corymbosely pranehiale 
bove; leaves narrowly legge V-24! erstck 3/6" broad, more or less 
1 
shes 
ceptacle rather ea Dai sétly em ite, villose; rays 10-12, oblong-ov al, 
entire or slightly e em arginate; ac enia compressed- -py riform, scatvely 
ets black and somewhat shining — all& Harbour,271. Nea 
ver, Dr. Smith. Among the mountains, Canby. Cafion City, Brandevon 
Mount ef the Holy Cross and Sierra Madre Range, opr ter. 
Var. LATIFOLIA, Porter. Taller, 3° high; leaves larger, 3/—-4/ long, 
1/15 oad, usually ial with scattered teeth jdieste hills near Col- 
orado Springs, 2 
HELESPERMA?” ete Gr. Annual, glabrous, 19°-2¢ high, much 
branched, branches slender; leaves opposite, 1-2 pinnately parted or 
divided, the upper 3-5 divided or simple, nearly sessile, divisions atten- 
uate- filiform, scales of the interior inv olucre with broad searious marginS 
be hap Roan’. to the middle, longer than the linear-subulate, exterior = |. 
sale : 
cales; rays obovate, 3-toothe 
tanga -subulate, coneaye, at length divaricate short awns or teeth | 
ich are fringed with yellow, polecad. bristly hairs; heads numerous, 
small, 6M broad without the ray ae a ll dé Harbour, 280. Cafion City, | 
Brandegee. Near Denver, Dr. 8 Smith. Plains around Colorado Springs, 
Porter. sitaveacet wpe Co esas Rea Ach oe S| 
TH RMA G E, Gr. Ere high, branched above j 
branches stri at stun oats ay pean nbose; sey aioe or pedately alee 
5-parted, with narrowly-lin lin ear, rigid lobes, the uppermost nearly simple: :. 
few-many, on long peduncles; involucre campanulate, inner 
seales united above the middle, obtuse or acutish, often with narrow, 
scarious margins, exterior brates Y ery short, obtuse ; rays none; achenia 
acinar, Saaewart crowned with 2 stout subulate, persistent, spreading, re 
rsely pectinate-hispid a wns.—Hall & Harbour, 279. Plains Brot 
Herve: >and Colorado Springs, Porter. 
_ COREPOSIS Laer sf Nutt.—On the plains. Hall. 
COREPOSIS INVOLUCRATA, Nutt. “Minutely pubescent, stem ass? 
rangular below; leaves 1-2 pinnately 3-7 par ‘ted, the divisions linear- 
HELI siege Nw Heads many-flowered, radiate; rays neutral; dae ch 
numero rfect, the corolla with a very short pube seent proper tbe, ft é ampli 
ated very. near the base ,) 5-toothed. g; oblong 
2 rows. ae rtacle oblong-c conical, covered with mat lanceo cats, Shae obape or 
nate chafi, } urtly embrac cing t e di prs and nearly their length. Stamens with 
< 
aa 
wept 
f pappus.—Perennial Western North American sherbs or sythratescent plants, with 
“Walia oe eae opposite leaves and yellow flowers, smaller hati those of most 
t 
“2 THELESPERMA, Gray. (Cosmi dium, T. & G ak ‘. Am.) Heads many-flowered ; the 
ray-Howers about 8 apg vis bsnl ee wanti ne; those of the disk tubular, perfect. 
Involucre double, each of ; the interior “oblong. Mest some wha ef ites 
ceous, united to the mie, sch larger than the exte ce -ptacl 
cariou af 
pe 
very slender tube and a deeply 5-cleft limb; the segments 
Achenia linear-oblo ong (obscure! Sige iy when young,) sap oe th o 
aot inecurved and tuberculate on the back when mature 
it crowned with 2 dentiform —s pectinate-ciliate re 
