Dilleniidae
       n : a group of families of more or less advanced trees and
           shrubs and herbs having either polypetalous or
           gamopetalous corollas and often with ovules attached to
           the walls of the ovary; contains 69 families including
           Ericaceae and Cruciferae and Malvaceae; sometimes
           classified as a superorder [syn: subclass Dilleniidae]