328 
SYNGENESIA SUPERFLUA. 
1. Hieracifolids. 
S. caule virgatim-pa- 
niculato; foliis oblongis 
amplexicaulibus, inae- 
qualiter profunde den- 
tatis incisisque; invo- 
Jucris laevibus. 
Stem virgate, pani- 
culate; leaves oblong, 
amplexicaule, unequal- 
ly and deeply toothed 
and notched; involu- 
crum smooth. 
Sp. pi. 3. p. 1974. Mich. 2. p. 119- Pursh, 2. p. 529. Nutt. 2. p. 165. 
Cineraria Canadensis. Walt. p. 20 7? 
Annual. Stem four to eight feet high, a little hairy and scabrous, succulent, 
branching towards the summit. Leaves alternate, sessile, oblong, deeply 
notched, almost pinnatifid, the lobes all acute, pubescent, a little scabrous, 
hairy along the midrib ; panicle compound, terminal, the branches strait, 
numerous. Involucmm ventricose ; leaves equal, glabrous, acute ; leaflets 
at base setaceous, irregularly disposed. Florets of the ray none ; of the 
disk, tubular, numerous, white. Anthers a little longer than the corolla, 
purplish. Style longer than the stamens, two-cleft ; stigmas reflected. Seeds 
cylindric, a little hairy. Pappus setaceous. Receptacle naked, dotted. 
The involucrum in this species appears to be monophyllous, deeply divided. 
Grows in rich damp soils. 
Flowers June — September. 
2. SuAVEOLENS. 
S. caule herbaceo; 
foliis petiolatis, hasta- 
to-sagittatis, serratis, 
glabris, coneoloribus; 
floribus corymbosis, 
erectis; involucris mul- 
tifloris. 
Stem herbaceous; 
leaves on petioles, has- 
tate, sagittate, serrate, 
glabrous, uniformly co- 
loured; flowers in co- 
rymbs, erect; involu- 
crum many flowered. 
Cacalia Suaveolens. Sp. pi. 3. p. 1734. Walt. p. 195. Mich. 2. p. 96. 
Pursh, 2. p. 518. Nutt. 2. p. 138. 
Root perennial. Stem three to five feet high, like the whole plant gla- 
brous. Leaves hastate, ovate, acutely and irregularly serrate, mucronate, 
supported on winged petioles one to two inches long. Involucrum many 
leaved ; leaves linear-lanceolate, acute, a little pubescent at the summit, sur- 
rounded at base, by small subulate or setaceous leaves, irregularly disposed. 
Florets of the disk very numerous, tubular, yellowish white, somewhat glo- 
bular at base. Anthers longer than the corolla, with the terminal appen- 
dixes deeply separated, acute. Style two-cleft. Seed oblong, striate. Pap- 
pus simple, hairy under a lens, a little scabrous. Receptacle naked. 
