Glossary

Category: A

  • Aphyllous

    Aphyllous

    Without leaves. Destitute of leaves.  

  • Aphyllopodic

    With lower leaves reduced to scales or sheaths only, as in some Cyperaceae.  

  • Aphlebia

    A narrow, strap-like, very spiny leaflet quite different in form from normal leaflets, found at the very base of the adult sessile leaves of Eremospatha and Laccosperma. (Termed ‘aphlebia’ because of the superficial similarity to structures of this name in certain Pteridophytes; specialist term used in Palmae. A leaflet different in form from normal leaflets,…

  • APG, APG II, APG III

    (In plant taxonomy) abbreviation of Angiosperm Phylogeny Group, and now used to indicate the system of plant classification published in 2009 (APG III).  

  • Apetalous

    Apetalous

    Without petals. Destitute of petals.  

  • Aperturate

    With an opening, not closed; Pollen grain with one or more apertures.  

  • Antrorsely

    Upward or forward.  

  • Antrorse

    Antrorse

    Pointing towards the distal end, upwards or forwards, used of stem hairs and barbs on spines.  

  • Antitropous

    (Of ovules) with the radicle pointing away from the hilum.  

  • Antisepalous

    Antisepalous

    Opposite to a sepal, and not alternate with it; similar to oppositisepalous.