V; 
'“>t, 
‘On, 
'““hi. 
‘On. 
Hli 
'"If; 
“>71 
% 
“‘III 
“’ll. 
ycus. 
"H 
“m. 
m 
'oil 
'“’It, St 
'“oil 
““I. 
% 
'““I. 
SYNGENES. NECESS. 15S8, Silphium. 1473 
*5^8. SILPHIUM. Re(ieptacle chaffv ; crown- 
ed with a 2 - awned margin : calyx Ipreading 
every way. 
and ftem-leaves pinnatifid : ftem hairy. 
America. Linn. Jil. f«Jr. y, ft. i^. tab. 3. Calyx fpinous. 
Stem^ leaves finuatc pinnatifid ; radical-ones ferrate, finuate 
in many divifiotis : Item (mooth. 
Carolina. Mich. Amer. z. p. 145. 
I-eaves alternate, ovate, ferrate, rough ; radical-ones 
hearted. 
North America. Jaci. hort. l. p 16. tab. 43. ■ 
Leaves oppofite, deltoid, petioled, perfoliate : ftem 3-fided, 
fmooth. 
North America. Leamei ferrate : calyx obtufe. 
Leaves oppofite, feffile, perf.oliate : ftem cylindrical, rough, 
■North America. Leaves with a concave ditk, rough. 
L'Caves oppofite or alternate, felTife, oblong, hairy : lower- 
ones ferrate: Hem cy indiical, briltly. 
virginit, Carolina. Ddl. Elth.t. 11 . f. 42. 
Leaves oviil, obtnfc, lightly toothed, fomewhat downy: 
ftem clothed with light down. 
Florida. Michaux. Amer. 2. p. 146. 
Leaves oblong, oppofite, feffile, very entire, rough : ftem 
4 'fided, rough. 
North America. Michaux. Amer.z.p 146. 
6-ang'ed : leaves in threes, ovate, toothed : panicle 
Irichotomous. 
^*rohna. Moris, feet. 6. t. 3. f. 68. Leaves rough. 
ems cylindrical ; leaves in threes, {lightly denticulate : 
panicle forked. 
''rth America Willd 3. y. 2333. Lower and upper-leaves 
fcattered, middle-ones 3 in a whorl, thofe of the panicle in 
pairs and feffile. 
cylindrical: upper-leaves in fours, denticulate; 
- panicle forked. 
'Jjah Aitierica. Willd i.p. 2334. Lowest leaves alternate, 
he next in threes, upper-oncs in fours, uppermoft fcattered ;• 
petioles ciliate. 
VOL.VL— E4 
St. 
