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The Collaborative International Dictionary of English v.0.48 (gcide)

Magnoliidae \Magnoliidae\ n.
a group of families of trees and shrubs and herbs having
well-developed perianths and apocarpous ovaries and generally
regarded as the most primitive extant flowering plants;
contains 36 families including {Magnoliaceae} and
{Ranunculaceae}; sometimes classified as a superorder.

Syn: subclass Magnoliidae, ranalian complex.
[WordNet 1.5]


Dicotyledonae \Dicotyledonae\ n. (Bot.)
a class of plants comprising those seed plants that produce
an embryo with two 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}.

Syn: Dicotyledones, class Dicotyledones, class Dicotyledonae,
Magnoliopsida, class Magnoliopsida.
[WordNet 1.5]

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