Aucune définition officielle pour le moment...
pte·rid·o·phyte (t -r d -f t , t r -d -). n. Any of various vascular plants that reproduce by means of spores rather than by seeds, including the ferns and related plants, ...
http://www.thefreedictionary.com/pteridophyte
Les ptéridophytes (du grec pteros, aile et phytos, végétal), ou fougères, sont un embranchement du règne des végétaux. Les plantes de cet embranchement ...
http://www.thefreedictionary.com/pteridophyte
pte·ri·do·phyte. noun \t?-?ri-d?-?f?t, ?ter-?-d?-\. Definition of PTERIDOPHYTE. : any of a division (Pteridophyta) of vascular plants (as a fern) that have roots, ...
http://www.futura-sciences.com/magazines/nature/infos/dico/d/botanique-pteridophyte-5910/
Pteridophytes or Pteridophyta sensu lato are vascular plants (plants with xylem and phloem) that reproduce and disperse via spores. Because they produce ...
http://www.futura-sciences.com/magazines/nature/infos/dico/d/botanique-pteridophyte-5910/
By far the largest group of ferns is the leptosporangiate ferns, but ferns as defined here (also called monilophytes) include horsetails, whisk ferns, marattioid ...
http://www.merriam-webster.com/dictionary/pteridophyte
noun. (in traditional classification) any plant of the division Pteridophyta, reproducing by spores and having vascular tissue, roots, stems, and leaves: includes ...
http://www.merriam-webster.com/dictionary/pteridophyte