Basionym Name:Arthonia apotheciorum subsp. caerulescens Almq., K. svenska Vetensk-Akad. Handl., ny följd 17(no. 6): 59 (1880)
Homotypic synonyms:Arthonia caerulescens (Almq.) Arnold, Flora, Regensburg 64(21): 324 (1881)Conida caerulescens (Almq.) Zopf, Hedwigia 35(6): 335 (1896)