LichenIreland
  • Caloplaca chrysodeta (Vain. ex Räsänen) Dombr.
Caloplaca chrysodeta
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Formerly named Leproplaca chrysodeta, the powdery, K+ purple thallus of this lichen can develop into a thick, dull orange-mustard yellow, finely cracked crust. It occupies niches in dry, shaded limestone cliffs and sometimes man-made walls. Widely but thinly distributed in Ireland.

Key characteristics

  • Patchy or continuous, powdery-cracked thallus; brownish to mustard yellow
  • Shaded limestone and calcareous rocks, also overgrowing mosses and wall mortar.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Caloplaca chrysodeta (Vain. ex Räsänen) Dombr.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=20570 Accessed on 2017-11-22.