psilophyte

psilophyte
noun Etymology: New Latin Psilophyton, genus of plants, from Greek psilos bare, mere (probably akin to Greek psēn to rub) + phyton plant — more at phyt- Date: circa 1911 any of a division (Psilophyta) of simple dichotomously branched plants that first appeared during the Late Silurian, are now limited to two extant genera, lack true leaves and roots, and include the oldest known land plants with vascular tissue • psilophytic adjective

New Collegiate Dictionary. 2001.

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  • psilophyte — [sī′lə fīt΄] n. any of various extinct, early land plants of the Silurian and Devonian periods, characterized by a simple vascular structure and lacking true roots and leaves * * * …   Universalium

  • psilophyte — ● psilophyte nom masculin Plante vasculaire dont le sporophyte ne porte pas de racines et dont les tiges peuvent être dépourvues de feuilles, telle que le psilotum. (Les psilophytes forment un embranchement du groupe des ptéridophytes.) …   Encyclopédie Universelle

  • psilophyte — [sī′lə fīt΄] n. any of various extinct, early land plants of the Silurian and Devonian periods, characterized by a simple vascular structure and lacking true roots and leaves …   English World dictionary

  • Psilophyte — Psilophyta Psilophytes …   Wikipédia en Français

  • psilophyte — noun a) Any plant that is adapted to live in a savannah b) Any plant of the former taxon Psilophyta …   Wiktionary

  • psilophyte — psi·lo·phyte …   English syllables

  • psilophyte — noun any plant of the order Psilophytales: a savannah plant • Hypernyms: ↑vascular plant, ↑tracheophyte • Member Holonyms: ↑Psilophytales, ↑order Psilophytales * * * ˈ ̷ ̷ ̷ ̷ˌfīt noun ( …   Useful english dictionary

  • CORMOPHYTES — Chez les Végétaux eucaryotes, on distingue par leur morphologie deux grands groupes, les Thallophytes, dont l’appareil végétatif est un thalle , tel celui des Algues ou des Champignons [cf. THALLE], et les Cormophytes (ou Archégoniates), dont… …   Encyclopédie Universelle

  • psilophytic — adjective see psilophyte …   New Collegiate Dictionary

  • Psilotum — Taxobox name = Psilotum image width = 250px image caption = Closeup of Psilotum nudum regnum = Plantae divisio = Pteridophyta classis = Psilotopsida ordo = Psilotales familia = Psilotaceae genus = Psilotum subdivision ranks = Species subdivision …   Wikipedia

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