Basionym Name:Thelotrema fuscescens Kremp., Flora, Regensburg 59: 220 (1876)
Homotypic synonyms:Ocellularia fuscescens (Kremp.) Lücking & Álvaro-Alba, in Lücking, Álvaro Alba, Moncada, Marín Canchala, Sua Tunjano & Cárdenas López, Bryologist 126(2): 287 (2023)Phaeotrema fuscescens (Kremp.) Zahlbr., Cat. Lich. Univers. 2: 607 (1923)