Eusporangiate fern
Eusporangiate ferns are vascular spore plants, whose sporangia arise from several epidermal cells and not from a single cell as in leptosporangiate ferns. Typically these ferns have reduced root systems and sporangia that produce large amounts of spores (up to 7000 spores per sporangium in Christensenia) There are four extant eusporangiate fern families, distributed among three classes. Each family is assigned to its own order. The following diagram shows a likely phylogenic placement of eusporangiate fern classes within the vascular plants.
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Eusporangiate fern
Eusporangiate ferns are vascular spore plants, whose sporangia arise from several epidermal cells and not from a single cell as in leptosporangiate ferns. Typically these ferns have reduced root systems and sporangia that produce large amounts of spores (up to 7000 spores per sporangium in Christensenia) There are four extant eusporangiate fern families, distributed among three classes. Each family is assigned to its own order. The following diagram shows a likely phylogenic placement of eusporangiate fern classes within the vascular plants.
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Eusporangiate ferns are vascul ...... es within the vascular plants.
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Eusporangiate varens (van het ...... rens, leptosporangiate varens)
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السراخس حقيقية المباغ (بالإنجل ...... لى 7000 بوغ لكل كيس بوغي في ).
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Botrychium lunaria
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Eusporangiate ferns
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*Psilotopsida
*Equisetopsida
*Marattiaceae
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Classes
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Eusporangiate ferns
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Eusporangiate ferns are vascul ...... es within the vascular plants.
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Eusporangiate varens (van het ...... eden) van elkaar afgescheiden.
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السراخس حقيقية المباغ (بالإنجل ...... لى 7000 بوغ لكل كيس بوغي في ).
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Eusporangiate fern
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Eusporangiate varens
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سراخس حقيقية المباغ
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Eusporangiate ferns
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