Lichens : Caliciales : CaliciaceaeLichens

Calicium quercinum Pers.

 Calicium quercinum : Interactive Map

Original text submitted by Vince J. Giavarini

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

iNaturalist: Calicium quercinum at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Calicium quercinum. Pers.. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=15540. Accessed on 2026-11-12.