gymnospermae definition

  • noun:
    • plants having nude seeds maybe not enclosed in an ovary; in some systems considered a class (Gymnospermae) as well as in other individuals a division (Gymnospermophyta); comprises three subdivisions (or courses): Cycadophytina (course Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in a few classifications the Coniferophytina are divided in to three groups: Pinophytina (course Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (course Taxopsida)

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