Lichenologist 29, 4: 340 (1997).

Basionym: Crocynia lesdainii Hue, Bull. Soc. Bot. Fr. 71: 397 (1924).

Type locality: France, Pas-de-Calais, Calais, Les Baraques, on wall, M. Bouly de Lesdain, Zahlbruckner: Lich. Rar. Exs.: 215 (BM - Isolectotype). Lectotypification by Canals et al. (1997: 340).