Lichens of Belgium, Luxembourg and northern France

Distribution map of Arthonia byssacea (Weigel) Almq. © by Paul Diederich   Arthonia byssacea (Weigel) Almq.
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Arthonia byssacea – Germany, Baden-Württemberg, Schwäbische Alb, on Quercus (thallus with pycnidia) – © 2010 by N. Stapper

On bark of old Quercus in well-preserved forests.

Belgium: - .

Luxembourg: Lorr.: R.

France: - .

All specimens from the study area are sterile, only producing pycnidia.

Lit.: Di: 36-37, L5: 8, Tholl et al. (1999).

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