Glossary: callus

Definition:

a thickened, raised mass of hardened tissue; hence

  1. (in Poaceae) a hard projection at the base of the floret or spikelet the sharp point of the seed;
  2. (in Orchidaceae) the raised structures, often consisting of ridges, papillae or projections, occurring on the upper surface of the lip.

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Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Botswana: Glossary details: callus.
https://www.botswanaflora.com/speciesdata/glossary-display.php?glossary_id=95, retrieved 3 December 2024

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