SYNGENESIA POLYGAMIA- NECESSARIA,, 267; 
dntrod. 1731, by William Fautiaer M.D. J4il. 
di. edit, 8. 
fl. Auguft 
O@oSer. : : S. O-> 
BALTIMORA.. Linn, mant. 158. 
Recept. paleaceum. . Pappus nullus. Cai. cylindricus, 
polyphyllus. Radius. corolle 5-florus, 
i. BaLTImoRA. Linn. mant. 288. relia. 
Upright Baltimora. - 
| Nat. of Maryland. 
Introd, 1781, by Monf, Thouin, 
Fi. June and July. H. ©, 
SILPHIU M.- Gen, pl o8. 
Recept. paleaceum. Pappus marginato-bicornis, Cal, 
fquarrofus.: 
1. S. foliis alternis pinnato-finuatis, Sp, pl. 1301. lacinia- 
Jagged-leav’d Silphium, tum. 
Nat. of North America. 
Introd. 1781, by Monf. Thouin, 
“Fl July-——September, H. 4. 
2. S. foliis alternis ovatis ferratis fcabris; radicalibus  terebin- 
cordatis, Linn. fuppl. 383- Facqu. hort. 1. p16. thinum, 
243° ‘ 
_ Broad-leav’d Silphium, re 
Nat, of North America. 
Introd. 1756, by Mefirs. Kennedy and, Lee. 
fi. Auguft and September, Bu. i 
gi wn +l 
3S. foliis oppofitis deltoidibus petiolatis perfliatis cal perfoliae 
_Fetragono levi. Sy/t. veget. 789, Sith + 
