LichenIreland
  • Cliostomum corrugatum (Ach.) Fr.
Cliostomum corrugatum
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This predominantly coastal lichen may have been incorrectly reported from Ireland. There are old records from Counties Dublin and Cork but both of these are unconfirmed. However, it would not be unexpected for it to turn up on coastal jetties or estuarine timbers. C. corrugatum differs from the common lichen C. griffithii in its thick, warty thallus often with a greasy sheen, and creamy yellow discs.

Key characteristics

  • Thallus pale grey, rather thick, warty, greasy-looking; black spots (pycnidia) numerous
  • Discs rare, creamy yellow; coastal timbers.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Cliostomum corrugatum (Ach.) Fr.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18420 Accessed on 2017-11-18.