Basionym Name:Rhizocarpon grande f. cinereobullatum Blomb. & Forssell, Enum. Pl. Scand.: 94 (1880)
Homotypic synonyms:Rhizocarpon grande var. cinereobullata (Blomb. & Forssell) Räsänen, Ann. bot. Soc. Zool.-Bot. fenn. Vanamo 12(no. 1): 143 (1939)