Pteridophyta

Pteridophyta

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. -- Pter"i*do*phyte`, n.

Note: This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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WordNet
pteridophyta

noun
containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta 
WordNet® 3.0, © 2006 by Princeton University.
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