Synonymy:
Bacidia subtilis Vězda, Preslia 33: 367 (1961)
Arthonia subtilis (Vězda) Vězda, Lichenes Rariores Exsiccati, Fasc. 5 (nos 41-50) (Brno) 5: 3 (1961)

Position in classification:
Fellhanera, Pilocarpaceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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