Absconditella Absconditella celata Acarospora Acarospora cervina Acarospora fuscata Acarospora glaucocarpa Acarospora impressula Acarospora moenium Acarospora myochroa - see Myriospora myochroa Acarospora nitrophila Acarospora rufescens - see Myriospora rufescens Acarospora sinopica Acarospora smaragdula - see Myriospora smaragdula Acarospora subrufula Acarospora versicolor Acolium Acolium inquinans Acolium marcianum Acolium sessile Acrocordia Acrocordia cavata Acrocordia conoidea Acrocordia gemmata Acrocordia macrospora Acrocordia salweyi Agonimia Agonimia allobata Working document here Agonimia flabelliformis Agonimia tristicula Agyrium Agyrium rufum Alectoria Alectoria nigricans - see Gowardia nigricans Alectoria ochroleuca Alectoria sarmentosa subsp. sarmentosa Alectoria sarmentosa subsp. vexillifera Allantoparmelia Allantoparmelia alpicola Alyxoria Alyxoria culmigena Alyxoria mougeotii Alyxoria ochrocheila Alyxoria subelevata Alyxoria varia Alyxoria viridipruinosa Amandinea Amandinea pelidna Amandinea punctata Amygdalaria Amygdalaria pelobotryon Anaptychia Anaptychia ciliaris Anaptychia mamillata Anaptychia runcinata Andreiomyces Andreiomyces obtusaticus Anisomeridium Anisomeridium biforme Anisomeridium polypori Anisomeridium ranunculosporum Antennulariella Antennulariella lichenisata Aquacidia Aquacidia antricola Aqucidia viridifarinosa Arctomia Arctomia fascicularis Arthonia Arthonia amylospora Arthonia anombrophila Arthonia apotheciorum Arthonia arthonioides Arthonia atra Arthonia byssacea Arthonia calcarea Arthonia cinnabarina - see Coniocarpon cinnabarinum Arthonia colombiana Arthonia destruens Arthonia didyma Arthonia elegans auct. br. - see Coniocarpon fallax Arthonia epimela Arthonia fuscopurpurea Arthonia glaucomaria Arthonia graphidicola Arthonia ilicina Arthonia lapidicola - see Bryostigma lapidicola Arthonia lecanoricola Arthonia lepidophila Arthonia leucopellaea - see Felipes leucopellaeus Arthonia molendoi Arthonia muscigena - see Bryostigma muscigenum Arthonia pannariae Arthonia parietinaria Arthonia phaeobaea Arthonia protoparmeliopsidis Arthonia pruinata - see Pachnolepia pruinata Arthonia punctella Arthonia punctiformis Arthonia radiata Arthonia spadicea - see Diarthonis spadicea Arthonia subfuscicola Arthonia varians Arthonia sp. P3067 Arthopyrenia Arthopyrenia analepta Arthopyrenia cerasi Arthopyrenia cinereopruinosa Arthopyrenia fraxini Arthopyrenia nitescens - see Naetrocymbe nitescens Arthopyrenia punctiformis - see Naetrocymbe punctiformis Arthopyrenia salicis Arthopyrenia saxicola - see Naetrocymbe saxicola Arthopyrenia sp. P3928 Arthothelium Arthothelium lirellans Arthrorhaphis Arthrorhaphis aeruginosa Arthrorhaphis citrinella Arthrorhaphis grisea Aspicilia Aspicilia aquatica Aspicilia caesiocinerea - see Circinaria caesiocinerea Aspicilia calcarea - see Circinaria calcarea Aspicilia cinerea Aspicilia contorta subsp. contorta - see Circinaria contorta subsp. contorta Aspicilia contorta subsp. hoffmanniana - see Circinaria contorta subsp. hoffmanniana Aspicilia grisea Aspicilia intermutans - see Aspiciliella intermutans Aspicilia laevata Aspicilia leprosescens - see Circinaria leprosescens Aspicilia melanaspis - see Lobothallia melanaspis Aspicilia radiosa - see Lobothallia radiosa Aspicilia recedens - see Lobothallia recedens Aspiciliella Aspiciliella intermutans Athallia Athallia cerinella Athallia cerinelloides Athallia holocarpa Athallia pyracea Athallia vitellinula Atla Atla alpina