Glossary

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  • Acaulous

    Without a stem, or without a visible stem.  

  • Acaulescent

    Acaulescent

    Without a stem (preferred term for this is acaulous; the ending -escent implies change). More or less stemless, the stem often subterranean.  

  • Acarpous

    Without fruit.  

  • Acarpic

    Without fruit; the more common term is acarpous.  

  • Acarophytic

    (Of a plant) harbouring mites.  

  • Acarodomatia

    Acarodomatia

    Small pockets in leaves, in the axils of the veins on the abaxial surface, theoretically harbouring mites (Acari); usually contracted to ‘domatia’.  

  • Acanthophyll

    Leaflet of a pinnate leaf modified in the form of a spine [specialist term used in Palmae.  

  • Acantha

    Prickle, thorn, spine [vague term, not recommended]. General term for spine, especially the spinous process of a vertebra. A spine projecting from a vertebra.  

  • Abscission joint

    Zone of articulation where a leaf or another organ (part) will break off; often swollen and with a constriction groove.  

  • Abscission (also abscissing)

    (Of leaves or leaflets, sometimes on flower or fruit stalks, rarely branches), detaching from the stems that bear them at a predetermined place, the abscission zone.  

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