414 
SYNGENESIA FRUSTRANEA. 
pubescent. Receptacle globose, chaff ovate-lanceolate, slightly acuminate, 
fringed. 
Grows, variety a in the upper country of Carolina and Georgia; b in the 
low country of Carolina. 
Flowers August— -October. 
HELIANTHU S. Gen. Pb. 1322. 
Receptaculum pale- 
aceum, planum. Pap- 
pus diphyllus, caducus. 
Involucrum imbrica- 
tum, subsquarrosum, 
foliaceum. 
* Ploribus 
atro purpureis. 
1. Atrorubens. 
H. hispidus; caule 
superne nudiusculo laxe 
paniculato; foliis spa- 
thulatis,oblongo-ovatis, 
crenatis, triplinervibus, 
supra scabris; involucri 
squamis ovato-lanceo- 
latis, longitudine disci. 
Receptacle chaffy, 
flat. Pappus 2-leaved, 
caducous. Involucrum 
imbricate, generally 
squarrose, leafy. 
Hispid; stem naked 
towards the summit, 
loosely paniculate; 
leaves spathulate, ob- 
long ovate, crenate, 
triplinerved, scabrous 
on the upper surface; 
scales of the involucrum 
ovate-lanceolate, as 
long as the disk. 
disci | * Florets of the disk 
I dark purple. 
Sp. pi. 3. p. 2254. Walt. p. 21 6. Mich. 2. p. 140. Pursh, 2. p. 5?0'. 
Nutt. 2. p. 177. 
Root perennial. Stem herbaceous, three to four feet high, muricate, with 
a few long branches. Leaves opposite, spathulate, but tapering at base, 
ovate, acute, toothed, scabrous on the upper surface, hairy and rather soft 
underneath, triplinerved, paler underneath; those near the base crowded 
and nearly a foot long, the upper ones small, sessile, and almost connate. 
Floivers in a loose terminal panicle. Involucrum many leaved, (twenty to 
twenty-four,) imbricate, leaves sligjitly obovate, ciliate, erect. Florets of 
