Basionym Name:Pertusaria grisea var. pachythallina Räsänen, Ann. bot. Soc. Zool.-Bot. fenn. Vanamo 2(no. 1): 28 (1932)
Homotypic synonyms:Pertusaria pachythallina (Räsänen) Messuti, Lichenologist 38(3): 283 (2006)