Meaning of GYMNOSPERMAE
WordNet Dictionary |
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| Definition: | | [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) |
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| Synonyms: | | class Gymnospermae, division Gymnospermophyta, Gymnospermophyta |
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| See Also: | | class, class Coniferopsida, class Cycadopsida, class Ginkgopsida, class Gnetopsida, class Pteridospermopsida, Coniferophyta, Coniferophytina, Coniferopsida, Cycadophyta, Cycadophytina, Cycadopsida, division Spermatophyta, Ginkgophyta, Ginkgophytina, Ginkgopsida, Gnetophyta, Gnetophytina, Gnetopsida, gymnosperm, gymnosperm family, gymnosperm genus, gymnospermous tree, Pteridospermopsida, Spermatophyta, subdivision Coniferophytina, subdivision Cycadophyta, subdivision Cycadophytina, subdivision Ginkgophytina, subdivision Gnetophytina | |
Biology Dictionary |
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| Definition: | | 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. |
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