Baccharis genistelloides var. resinosa Hook. (original description)
Bridgesia Hook. accepted as Polyachyrus Lag. (original description)
Bridgesia echinopsoides Hook. (original description)
Praenanthes Hook. (original description)
Prenanthes subdentata Hook. accepted as Picrosia longifolia D.Don (original description)
Senecio volubilis Hook. accepted as Pseudogynoxys cordifolia (Cass.) Cabrera (original description)
Unxia dissecta Hook. accepted as Villanova oppositifolia Lag. (original description)