Basionym Name:Arthonia gregaria Fée, Essai Crypt. Exot. (Paris): 50, tab. XIII, fig. 16 (1825)
Homotypic synonyms:Platygramma gregaria (Fée) Spreng., [as 'Platygramme'] Syst. veg., Edn 16 4(1): 254 (1827)Platygramma gregarium (Fée) Spreng., [as 'gregaria'] Syst. veg., Edn 16 4(1): 254 (1827)