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Arthothelium ruanum
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Family: Arthoniaceae
[Arthonia anastomosans f. dispersa (Mudd) B. de Lesd., more]  André Aptroot |
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 National Museum of Natural History Collections  National Museum of Natural History Collections  National Museum of Natural History Collections  National Museum of Natural History Collections  National Museum of Natural History Collections  National Museum of Natural History Collections  National Museum of Natural History Collections  André Aptroot  National Museum of Natural History Collections                                                        |
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