Division Gymnospermophyta (Noun)
Meaning
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).
Classification
Nouns denoting plants.
Examples
- The gymnospermophyta includes trees like pines, firs, and spruces that bear their seeds in cones rather than in flowers.
- Classification schemes ranked as high as division Gymnospermophyta are used to separate groupings within the plant kingdom.
- Many classification systems consider the taxonomic division Gymnospermophyta and the class Gymnospermae to be equivalent.
- Division Gymnospermophyta includes three subdivisions which are also sometimes given the rank of class, namely Coniferophytina, Cycadophytina, and Gnetophytina.
- Botanists studying the evolution of plants often focus on division Gymnospermophyta in their investigations, because it provides key evidence linking different plant groups.