Basionym Name:Lecanora perrugosa Nyl., J. Linn. Soc., Bot. 9: 250 (1867)
Homotypic synonyms:Placodium perrugosum (Nyl.) Müll. Arg., Nuovo G. bot. ital. 21(1): 40 (1889)Placopsis perrugosa (Nyl.) Linds., Trans. Linn. Soc. London 25: 536 (1866)Placopsis perrugosa f. perrugosa (Nyl.) Nyl., Lich. Nov. Zeland. (Paris): 57 (1888)