Lichens : Lecanorales : LecanoraceaeLichens

Lecanora albella (Pers.) Ach.

Description: This is a pretty crustose epiphyte with white-frosted discs (to 1.5mm diam.) very like L. carpinea (described elsewhere) but less obvious. The pale grey thallus can occur both on twigs and on the smooth bark of acid-barked trees. The pinkish discs with a white, raised rim (exciple) are coated in a veil of white pruina. A dab of fresh bleach (C) has no effect on the discs [C + yellow in L. carpinea] but turn yellow to red with Pd. Frequent in Northern Ireland, scattered elsewhere.

Key Identification Features:

  • Small, slightly pink, heavily white-frosted discs that are C-, Pd + yellow-red
  • On twigs and on bark of smooth acid-barked trees.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Lecanora albella at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Lecanora albella. (Pers.) Ach.. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=18607. Accessed on 2026-11-12.