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  • Gnetidae - Wikipedia
    "Seed plant relationships and the systematic position of Gnetales based on nuclear and chloroplast DNA: Conflicting data, rooting problems, and the monophyly of conifers"
  • Gnetales: An Overview - Biology Learner
    Gnetales is an order of the gymnospermic seed plants This order is composed of three genera, viz- Gnetum, Ephedra, and Welwitschia
  • Gnetales - an overview | ScienceDirect Topics
    Gnetales is defined as a group comprising three extant genera—Ephedra, Gnetum, and Welwitschia—characterized by distinct morphological features and uncertain phylogenetic relationships, with members exhibiting diverse ecological adaptations and reproductive structures
  • The Gnetales: Recent insights on their morphology, reproductive biology . . .
    The Gnetales are a clade of three genera that is morphologically and genetically so disparate from the remaining seed plant (cycads, Ginkgo, angiosperms, and Coniferales) that its precise placement has remained unclear (Mathews, 2009; reviewed in Mathews et al , 2010; Fig 1)
  • Gnetum - Wikipedia
    Gnetum is a genus of gymnosperms, the sole genus in the family Gnetaceae within the Gnetidae They are tropical evergreen trees, shrubs and lianas Unlike other gymnosperms, they possess vessel elements in the xylem
  • Gnetaceae | Gnetales, Gymnosperms, Conifers | Britannica
    Gnetaceae, a family of tropical gymnosperms in the order Gnetales (division Gnetophyta), composed of one genus, Gnetum, with 30 or more species
  • Gnetales | gnetophyte order | Britannica
    Gnetaceae, a family of tropical gymnosperms in the order Gnetales (division Gnetophyta), composed of one genus, Gnetum, with 30 or more species
  • GNETALES Definition Meaning - Merriam-Webster
    The meaning of GNETALES is an order of chiefly tropical or xerophytic woody gymnospermous plants that have two cotyledons, opposite leaves, vessels in the wood, and compound male and female strobili, consist of a single family (Gnetaceae), and are practically unknown as fossils but are sometimes considered on structural grounds to be near or on
  • Gnetales - Dictionary of botany
    A very distinct order of gym-nosperms containing the three genera Ephedra (joint firs) with about 40 species, Gnetum with about 30 species, and Welwitschia, containing the one species W mirabilis Certain species of Ephedra are important as sources of the alkaloid drug ephedrine
  • Gnetales - Missouri Botanical Garden
    For the morphology of Gnetales as it relates to that of other gymnosperms and of angiosperms, and for the relationships of Gnetales, both complex subjects, see discussions elsewhere





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