Pter`i*doph"y*ta (?), n. pl. [NL., from Gr. , , a fern + a plant.] Bot.
A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia.
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Pter"i*do*phyte` (#), n.
⇒ This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia.
© Webster 1913.