What are pteridophytes gymnasiums and angiosperms 1?
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Pteridophytes are plants including horsetails which are used for medicinal purposes
Gymnosperms are plants in which seeds are naked
Angiosperms are flowering plants in which seed are not naked
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A pteridophyte is a vascular plant (withxylem and phloem) that dispersesspores. Because pteridophytes produce neither flowers nor seeds, they are also referred to as "cryptogams", meaning that their means of reproduction is hidden. The pteridophytes include the ferns, horsetails, and the lycophytes (clubmosses, spikemosses, andquillworts). These are not amonophyletic group because ferns and horsetails are more closely related toseed plants than to the lycophytes. Therefore, "Pteridophyta" is no longer a widely accepted taxon, although the term pteridophyte remains in common parlance, as do pteridology andpteridologist as a science and its practitioner, to indicate lycophytes and ferns as an informal grouping, such as the International Association of Pteridologists and the Pteridophyte Phylogeny Group.
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A pteridophyte is a vascular plant (withxylem and phloem) that dispersesspores. Because pteridophytes produce neither flowers nor seeds, they are also referred to as "cryptogams", meaning that their means of reproduction is hidden. The pteridophytes include the ferns, horsetails, and the lycophytes (clubmosses, spikemosses, andquillworts). These are not amonophyletic group because ferns and horsetails are more closely related toseed plants than to the lycophytes. Therefore, "Pteridophyta" is no longer a widely accepted taxon, although the term pteridophyte remains in common parlance, as do pteridology andpteridologist as a science and its practitioner, to indicate lycophytes and ferns as an informal grouping, such as the International Association of Pteridologists and the Pteridophyte Phylogeny Group.
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