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Definition of Gymnospermae
1. Noun. 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).
Exact synonyms: Class Gymnospermae, Division Gymnospermophyta, Gymnospermophyta
Generic synonyms: Class
Group relationships: Division Spermatophyta, Spermatophyta
Member holonyms: Gymnosperm Family, Gymnosperm Genus, Gymnosperm, Class Gnetopsida, Gnetophyta, Gnetophytina, Gnetopsida, Subdivision Gnetophytina, Class Cycadopsida, Cycadophyta, Cycadophytina, Cycadopsida, Subdivision Cycadophyta, Subdivision Cycadophytina, Class Pteridospermopsida, Pteridospermopsida, Class Coniferopsida, Coniferophyta, Coniferophytina, Coniferopsida, Subdivision Coniferophytina, Class Ginkgophytina, Class Ginkgopsida, Ginkgophytina, Ginkgopsida, Subdivision Ginkgophyta, Subdivision Ginkgophytina, Gymnospermous Tree
Generic synonyms: Class
Group relationships: Division Spermatophyta, Spermatophyta
Member holonyms: Gymnosperm Family, Gymnosperm Genus, Gymnosperm, Class Gnetopsida, Gnetophyta, Gnetophytina, Gnetopsida, Subdivision Gnetophytina, Class Cycadopsida, Cycadophyta, Cycadophytina, Cycadopsida, Subdivision Cycadophyta, Subdivision Cycadophytina, Class Pteridospermopsida, Pteridospermopsida, Class Coniferopsida, Coniferophyta, Coniferophytina, Coniferopsida, Subdivision Coniferophytina, Class Ginkgophytina, Class Ginkgopsida, Ginkgophytina, Ginkgopsida, Subdivision Ginkgophyta, Subdivision Ginkgophytina, Gymnospermous Tree
Medical Definition of Gymnospermae
1. An important division of the plant kingdom, being woody plants with alternation of generations, having the gametophyte retained on the sporophyte and seeds produced on the surface of the sporophylls and not enclosed in an ovary. (09 Oct 1997)
Lexicographical Neighbors of Gymnospermae
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