( 3525). 
SILPHIUM TEREBINTHACEUM. 'TEREBINTHINE 
SILPHIUM. Ne Bick 
KEKE KEK KR EEK EERE KEE 
Class and re pets 
SyncenesiA NeEcEsSARIA. 
( Nat. Ord.—Composirz. ) 
Generic Character. 
Receptaculum paleaceum. Pappus marginato-bicornis. 
Involucrum squamosus. 
Specific Character and Synonyms. 
Sinpuium terebinthaceum ; foliis inferioribus amplis cordatis 
profunde dentato-serratis longe petiolatis subtus mar- 
gineque scabris, paniculis bracteatis. 
Sitpuium terebinthaceum. Linn. Suppl. p. 383. Jacq. 
Hort. Vind. v. 1. p. 16. t.43. Mich. Fl. Am. v. 2. p. 
245. Pursh, Fl. Am. v. 2. p. 577. Ell. Carol. v. 2. 
p. 463. Spreng. Syst. Veget. v. 3. p. 629. 
A very fine and handsome species of Sipu1um, to which 
the specific name seems to be applied on account of a tere- 
binthine gum, which exudes from the plant, as in the Sir- 
poium gummiferum of Mr. Extiort, and probably in other 
species of the Genus, during the hot summers which are 
experienced in their native climates. But in our chilly 
and damp country, no such exudation is observable: though 
the sap yields a peculiar odour. It is a stately plant, re- 
markable for the great size of its lower leaves ; and though 
inhabiting the western mountains of Carolina and Georgia 
and the prairies of St. Louis on the Missouri, it bears the 
open air in England and even in Scotland, remarkably well: 
flowering in the autumnal months. 
Descr. Perennial. Stem herbaceous, four to six feet in 
height, quite glabrous, striated, branched, erect ; lower leaves 
ample, some of them a foot long, cordate, coriaceous, acute, 
smooth 
