Lichens of Belgium, Luxembourg and northern France
Naetrocymbe saxicola (A. Massal.) R. C. Harris |
Syn. Arthopyrenia saxicola A. Massal., Pyrenocollema saxicola (A. Massal.) Coppins. The material from Belgium, Luxembourg and northern France attributed to this species belongs to a possibly undescribed species of Arthopyrenia (Roux 2009).