DICT.TW Dictionary Taiwan
3.147.71.92
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: WordNet (r) 2.0

 class Gymnospermae
      n : plants having naked seeds not enclosed in an ovary; in some
          systems considered a class (Gymnospermae) and in others a
          division (Gymnospermophyta); comprises three subdivisions
          (or classes): Cycadophytina (class Cycadopsida) and
          Gnetophytina (class Gnetopsida) and Coniferophytina
          (class Coniferopsida); in some classifications the
          Coniferophytina are divided into three groups:
          Pinophytina (class Pinopsida) and Ginkgophytina (class
          Ginkgopsida) and Taxophytina (class Taxopsida) [syn: Gymnospermae,
           Gymnospermophyta, division Gymnospermophyta]