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Gnetophyte | Definition, Plants, Characteristics, Reproduction
https://www.britannica.com/plant/gnetophyte
Webgnetophyte, (division Gnetophyta), any member of the division Gnetophyta, a small group of gymnospermous vascular plants that are represented by three living genera: Ephedra, Gnetum, and Welwitschia. There are 65 species in the genus Ephedra, 30 or more in Gnetum, and only 1 in Welwitschia.
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2.6.2.2: Conifers and Gnetophytes - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Botany/Botany_(Ha_Morrow_and_Algiers)/02%3A_Biodiversity_(Organismal_Groups)/2.06%3A_Seed_Plants/2.6.02%3A_Gymnosperms/2.6.2.02%3A_Conifers_and_Gnetophytes
WebCharacteristics of Gnetophytes. Angiosperm-like features: vessel elements, double fertilization, fruit-like ovule coverings; Dioecious. Female plants have covered ovules, while male plants have pollen cones. Leaves xerophytic with opposite arrangement; Primarily insect pollinated; brightly colored seeds are dispersed by birds
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22.5: Gnetophytes and Conifers - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Botany/Botany_Lab_Manual_(Morrow)/22%3A_Gymnosperms/22.5%3A_Gnetophytes_and_Conifers
WebGnetophytes (approximately 70 extant species) Gnetophytes represent an anatomically and genetically difficult group to classify. They have several traits in common with angiosperms, such as vessel elements in the xylem, double fertilization, and a covering over their seeds (more on this in labs 21 and 22).
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8.5: Gnetophytes - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Botany/Botany_in_Hawaii_(Daniela_Dutra_Elliott_and_Paula_Mejia_Velasquez)/08%3A_Gymnosperms/8.05%3A_Gnetophytes
WebJan 31, 2024 · Leeward Community College. Gnetophytes (Phylum Gnetophyta) Gnetales are the least familiar group of gymnosperms. There are 112 species in the world (Christenhusz and Byng, 2016), being divided into three main subgroups: Welwitschia (1 species), Gnetales (43 species), and Ephedrales (68 species).
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Gnetophyta | Basic Biology
https://basicbiology.net/plants/gymnosperms/gnetophyta
WebJan 16, 2016 · Gnetophyta. The gnetophytes are a strange group of plants. They include approximately 70 species of gymnosperms that each exhibit a number of flowering characteristics which have led people to believe they may be the predecessors to the flowering angiosperm plants.
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Gnetophyta | Characters, Taxonomy, Morphology and Anatomy
https://botanylive.com/gnetophyta/
WebOct 19, 2023 · Following are the distinguishing features of gnetales; They are woody trees ( G. gnemon ), shrubs (small trees), or sometimes climbers (vines). Climbing species have branches of limited growth. They are evergreen trees. Leaves are simple, broad, scale-like, or strap-shaped with a network of veins.
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Gnetophyta - Wikipedia
https://en.wikipedia.org/wiki/Gnetophyta
WebThe two common characteristics most commonly used are the presence of enveloping bracts around both the ovules and microsporangia as well as a micropylar projection of the outer membrane of the ovule that produces a pollination droplet, [7] though these are highly specific compared to the similarities between most other plant divisions. L. M.
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Gnetophyta - University of Wisconsin–Madison
https://botit.botany.wisc.edu/botany_130/diversity/plants/Vascular_Plants/Gnetophyta/index.html
WebVegetative Characteristics: Plants are trees, shrubs , lianes, or stumpy turnip-like . Leaves are simple, opposite or whorled, strap-like in Welwitschiaceae, angiosperm-like in Gnetaceae, or scale-like in Ephedraceae. Secondary xylem contains vessels, as in angiosperms, although the homology of the vessels in the two phylum is in question.
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Gnetophyta - Wikiwand
https://www.wikiwand.com/en/Gnetophyta
WebThe two common characteristics most commonly used are the presence of enveloping bracts around both the ovules and microsporangia as well as a micropylar projection of the outer membrane of the ovule that produces a pollination droplet, though these are highly specific compared to the similarities between most other plant divisions. L. M.
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Introduction to the Gnetophyta - University of California Museum …
https://ucmp.berkeley.edu/seedplants/gnetophyta/gnetos.html
Webthe odd triple. . . Click on the buttons below to find out more about the Gnetophyta. Images and information about various gnetophytes are available through.
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