subclass dilleniidae meaning and definition

SUBCLASS DILLENIIDAE noun

Definition of subclass Dilleniidae (noun)

1. 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
   • synonyms: Dilleniidae