Cryptog. Bryol. Lichénol. 2: 349 (1981). Type locality: Belgium, Hautes-Ardennes, Malmé-dy-Bévercé, 1979, M. Asperges 2951 (BR - holotype; H, U - isotypes).
Type locality: Belgium, Hautes-Ardennes, Malmé-dy-Bévercé, 1979, M. Asperges 2951 (BR - holotype; H, U - isotypes).