Category: A

  • Autogamous

    Self-fertilisation, when ovules are fertilised after pollination by pollen from the same individual.  

  • Autochthonous

    Of the species of a region, constituting the original flora, native. Native or endogenous microorganisms to an area, usually referring to soil microorganisms. Remaining at the site of formation. A blood clot that has not beet carried in the bloodstream from its point of origin is described as autochthonous. Found where developed, as in the…

  • Autochory

    Dispersal of seeds by the plant itself (e.g. by an explosive mechanism).  

  • Autocarp

    Fruit produced by self-fertilisation [unusual term].  

  • Authority

    The author of a plant name; cited as such after the plant name, often in a standard abbreviated form. The right to perform or command.  

  • Author citation

    (In nomenclature) the indication of who first gave the taxon its name.  

  • Author

    The writer of a book or paper, or (in nomenclature) the person who describes a new taxon. In politics, the member who introduces a bill in the house of its origin, sponsor.  

  • Autapomorphy

    (In cladistics) a derived character or trait unique to an ingroup, and not present in the outgroup.  

  • Autapomorphic

    (Of a character in cladistics) derived and unique to a given taxon or monophyletic group.  

  • Auriculate

    Auriculate

    Equipped with ear-like structures, usually near the base. Has a pair of rounded lobes that somewhat resemble the human ear. With ear-like structures, usually at the base of a leaf or petal.