Gymnospermae
Of class and Spermatophyta. May also be referred to as Gymnospermophyta, class Gymnospermae and division Gymnospermophyta.
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).
This concept's ID is @1~58323
Class
- Coniferopsida
Cone-bearing gymnosperms dating from the Carboniferous period; most are substantial...
- Cycadopsida
Palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders;...
- Gnetopsida
Gymnospermous flowering plants; supposed link between conifers and angiosperms; in some...
- Pteridospermopsida
Extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies.
- Ginkgopsida
Ginkgos: in some systems classified as a class and in others as a subdivision; used...
Also contains
- gymnosperm genus
A genus of gymnosperms.
- gymnosperm family
A family of gymnosperms.
- gymnosperm
Plants of the class Gymnospermae having seeds not enclosed in an ovary.
- gymnospermous tree
Any tree of the division Gymnospermophyta.