comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves
divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive)
Caryophyllidae (an early and distinctive offshoot)
and three more or less advanced groups: Dilleniidae
Rosidae
Asteridae - dicotyledones- class dicotyledones- dicotyledonae- class dicotyledonae- class magnoliopsida