Lichens : Rhizocarpales : RhizocarpaceaeLichens

Epilichen scabrosus (Ach.) Clem.

Description: Unmistakable lichen of old mine spoil tips. It colonises the thallus of Baeomyces rufus producing a scatter of conspicuous yellow to yellow-green patches that glow orange under UV. Small, black discs are usually present which become convex at maturity. No recent records from Ireland. West Cork.

Key Identification Features:

  • On Baeomyces rufus, forms small, bright green patches with black, convex discs
  • Mine spoil or on rocks with metal contamination.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Epilichen scabrosus at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Epilichen scabrosus at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Epilichen scabrosus. (Ach.) Clem.. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=39627. Accessed on 2026-11-12.