Index to the systematic names and synonyms. 
Ss 
Spigelia Marilandica : : 75 
Sophora tinctoria - = - aw BS 
Spigelia oppositifolia - - - 75 
Spigelia Americana - - oe 
Satureja origanoides - - - 171 
Solanum racemosum Americanumt - 213 
Solanum magnum Virginianum, &c. — ib. 
Typha aromatica - - . 63 
Trachelium Americanum - - 
235 
Ww 
Warnera Canadensis Wm - 17 
Z 
Zanthorhiza apiifolia - - 203 
Zanthorhizxa tinctoria - - - ib. 
Zanthorhiza simplicissima - . ib. 
Zanthorhixa Marbosia - - > the 
