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SporePlants213-page11

SporePlants213-page11 - absorption of nutrients and water...

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Spore-Dispersing Vascular Plants - 11 Dichotomous branching Sporangia Gametophyte Psilotum is homosporous and produces three-lobed sporangia in enation axils. Psilotum gametophytes are non–photosynthetic and subterranean. They are cylindrically shaped dichotomously branched saprobes that have mycorrhizae for
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Unformatted text preview: absorption of nutrients and water. The gametophytes are bisexual; both archegonia and antheridia are found along the surface of one gametophyte. The sperm are multiflagellated and require water for transport to archegonia....
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