Gymnospermophyta

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)
Hypernyms: ↑class
Member Holonyms: ↑Spermatophyta, ↑division Spermatophyta
Member Meronyms:

Useful english dictionary. 2012.

Look at other dictionaries:

  • division Gymnospermophyta — 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… …   Useful english dictionary

  • class Ginkgophytina — noun ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta • Syn: ↑Ginkgopsida, ↑class Ginkgopsida, ↑Ginkgophytina, ↑subdivision Ginkgophytina …   Useful english dictionary

  • class Ginkgopsida — noun ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta • Syn: ↑Ginkgopsida, ↑Ginkgophytina, ↑class Ginkgophytina, ↑subdivision… …   Useful english dictionary

  • class Gymnospermae — 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… …   Useful english dictionary

  • division Spermatophyta — noun seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and… …   Useful english dictionary

  • Ginkgophytina — noun ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta • Syn: ↑Ginkgopsida, ↑class Ginkgopsida, ↑class Ginkgophytina, ↑subdivision… …   Useful english dictionary

  • Ginkgopsida — noun ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta • Syn: ↑class Ginkgopsida, ↑Ginkgophytina, ↑class Ginkgophytina, ↑subdivision… …   Useful english dictionary

  • Gymnospermae — 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… …   Useful english dictionary

  • gymnospermous tree — noun any tree of the division Gymnospermophyta • Hypernyms: ↑tree • Hyponyms: ↑gnetum, ↑Gnetum gnemon, ↑ginkgo, ↑gingko, ↑maidenhair tree, ↑Ginkgo biloba, ↑ …   Useful english dictionary

  • Spermatophyta — noun seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and… …   Useful english dictionary

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