Liliopsida \Liliopsida\ n.
A class comprising seed plants that produce an embryo with a
single cotyledon and parallel-veined leaves. It includes the
grasses; lilies; palms; and orchids. It is divided into four
subclasses or superorders: Alismatidae; Arecidae;
Commelinidae; and Liliidae.
Syn: Monocotyledones, class Monocotyledones, Monocotyledonae,
class Monocotyledonae, class Liliopsida.
[WordNet 1.5]
Source: The Collaborative International Dictionary of English v.0.48
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