Category: P

  • Pseudanthium (plural pseudanthia)

    (In Euphorbiaceae or Cornus) an inflorescence consisting of several reduced flowers, the whole resembling a single flower. An inflorescence that consists of several reduced flowers together functioning as a single flower.  

  • Psammophyte

    Plant growing in sand or sandy soils.  

  • Pruinose

    Covered with a waxy, frost-like powder or bloom, as on a plum. (Of stem) Appearing powdered by fine dots, as if sprinkled with flour or sugar.  

  • Provisional

    (In nomenclature) name or epithet not accepted by its author at the time of its publication. Temporary and which may be change. Serving a temporary use pending permanent arrangements.  

  • Protype

    (In nomenclature) meaning a specimen that because of its completeness supplants a fragmentary holotype [unofficial and unusual term]; the official epitype is better, meaning a specimen that because of its completeness supports a fragmentary holotype.  

  • Protuberant

    Bulging out. A part that is prominent beyond a surface.  

  • Protruding

    Sticking out, exserted.  

  • Protracted

    Drawn out.  

  • Protostele

    Stele without central pith.  

  • Protologue

    (In nomenclature) the original description of a taxon; more correctly everything associated with a name at its valid publication, i.e. description or diagnosis, illustrations, references, synonymy, geographical data, citation of specimens, discussion, and comments.