pteropsid

pteropsid

plant
      any of a group of vascular plants (tracheophytes) that includes ferns, extinct seed ferns, gymnosperms (conifers, etc.), and angiosperms (flowering plants). Pteropsids manifest a great variety of vegetative and reproductive characteristics. For example, ferns produce spores, and gymnosperms and angiosperms form seeds. The characteristic common to the members of this class is the leaf with branched venation.

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Universalium. 2010.

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  • Pteropsid — refers to Pteropsida , a subdivision of vascular plants that is no longer in use. It includes all flowering plants and ferns and is divided into Filicinae , Gymnospermae , and Angiospermae …   Wikipedia

  • pteropsid — pte·rop·sid …   English syllables

  • pteropsid — təˈräpsə̇d, teˈr noun ( s) Etymology: New Latin Pteropsida : a plant of the subdivision Pteropsida …   Useful english dictionary

  • coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …   Universalium

  • Jeffrey, Edward Charles — ▪ American botanist born May 21, 1866, St. Catherines, Ont., Can. died April 19, 1952, Cambridge, Mass., U.S.       Canadian American botanist who worked on the morphology and phylogeny of vascular plants.       While a lecturer at the University …   Universalium

  • reproductive system, plant — Introduction       any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative …   Universalium

  • phyllosiphonic — “+ adjective Etymology: phyll + siphonic of a pteropsid plant : possessing leaf gaps ferns, gymnosperms, and angiosperms are phyllosiphonic …   Useful english dictionary

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