Keyword Analysis & Research: gnetophyta examples

britannica.com

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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wikipedia.org

https://en.wikipedia.org/wiki/Gnetophyta

WebGnetophyta (/ n ɛ ˈ t ɒ f ɪ t ə, ˈ n ɛ t oʊ f aɪ t ə /) is a division of plants (alternatively considered the subclass Gnetidae or order Gnetales), grouped within the gymnosperms (which also includes conifers, cycads, and ginkgos), that consists of some 70 species across the three relict genera: Gnetum (family Gnetaceae), Welwitschia ...

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libretexts.org

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 · An example of a plant in the Ephedrales group is Mormon tea (Ephedra spp.), which is common in arid regions of the Southwestern United States (Figure \(\PageIndex{2}\)). Mormon tea, and a similar species in China from which ephedrine is extracted, have been used for millennia for treating asthma.

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libretexts.org

https://bio.libretexts.org/Bookshelves/Botany/Botany_Lab_Manual_(Morrow)/22%3A_Gymnosperms/22.5%3A_Gnetophytes_and_Conifers

WebOne of the examples in that lab of xerophytic leaves was the pine needle. In the image below, you can see a cross section through a pine needle. Label the following features: xylem, phloem, transfusion tissue, endodermis, mesophyll, hypodermis, epidermis, and …

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basicbiology.net

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. examples

examples

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libretexts.org

https://bio.libretexts.org/Bookshelves/Botany/A_Photographic_Atlas_for_Botany_(Morrow)/07%3A_Gymnosperms/7.03%3A_Gnetophytes

WebGnetophytes 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. Even their leaves are angiosperm-like, with netted venation. However, these traits are convergently evolved, meaning ...

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botanylive.com

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. examples

examples

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nature.com

https://www.nature.com/articles/s41477-017-0097-2

WebJan 29, 2018 · Nature Plants (2022) Gnetophytes are an enigmatic gymnosperm lineage comprising three genera, Gnetum, Welwitschia and Ephedra, which are morphologically distinct from all other seed plants. Their ...

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britannica.com

https://www.britannica.com/plant/gnetophyte/Classification

WebThere have been attempts to demonstrate that the gnetophytes form a link between gymnosperms and angiosperms. Proponents of this concept cite the compound nature of both the pollen-producing and seed-producing strobili (some botanists have interpreted the strobili as “inflorescences”; i.e., the axillary fertile shoots of both types of cones ... examples

examples

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berkeley.edu

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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