Pteridophyte
Group of plants that reproduce by spores / From Wikipedia, the free encyclopedia
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A pteridophyte is a vascular plant (with xylem and phloem) that reproduces by means of spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden.
Pteridophyte Informal paraphyletic group of vascular plants that reproduce by spores | |
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Lycopodiella inundata | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Pteridophyta |
Included | |
Excluded | |
Ferns, horsetails (often treated as ferns), and lycophytes (clubmosses, spikemosses, and quillworts) are all pteridophytes. However, they do not form a monophyletic group because ferns (and horsetails) are more closely related to seed plants than to lycophytes. "Pteridophyta" is thus no longer a widely accepted taxon, but the term pteridophyte remains in common parlance, as do pteridology and pteridologist as a science and its practitioner, for example by the International Association of Pteridologists and the Pteridophyte Phylogeny Group.