Gnetophyta

(redirected from Gnetophytes)
Also found in: Thesaurus, Encyclopedia.
Related to Gnetophytes: Gnetopsida
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Gnetophyta - gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta)
class - (biology) a taxonomic group containing one or more orders
class Gymnospermae, division Gymnospermophyta, Gymnospermae, 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)
Gnetales, order Gnetales - chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms
References in periodicals archive ?
In this respect, Ephedra is similar to other gnetophytes (Welwitschia and Gnetum) (Endress, 1996).
MADS-box genes reveal that gnetophytes are more closely related to conifers than to flowering plants.
The only gnetophyte of temperate zone archaeobotanical significance is the genus Ephedra, and so the presence of vessels can often be taken to be indicative of angiosperms.