• Lecanora albella (Pers.) Ach.
Lecanora albella
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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 characteristics

  • 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

 Simms, M. J., (2016). Lecanora albella (Pers.) Ach.. [In] LichenIreland. Accessed on 2018-08-18.