Central Taxonomic Thesaurus
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  Fungi
      Ascomycota
        Pezizomycotina
            Lecanoromycetes
                    Lecanorales
                            Hymeneliaceae
                                     Agrestia
                                             Agrestia hispida
                                     Aspicilia
                                             Aspicilia calcarea
                                                   [Lecanora calcarea]
                                             Aspicilia cinerea
                                             Aspicilia laevata
                                     Hymenelia
                                     Ionaspis
                                             Ionaspis alba
                                     Lobothallia
                                             Lobothallia alphoplaca
                                                   [Lecanora alphoplaca]
                                             Lobothallia radiosa
                                                   [Lecanora radiosa]
                                     Megaspora
                                             Megaspora verrucosa
                                     Melanolecia
                                     Pachyospora
                                     Tremolecia