pteridophyta
Webster's Unabridged Dictionary:
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Pter·i·doph·y·ta
n. pl.
(Bot.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia. -- Pter·i·do·phyte , n.
Note: This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia.
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