Lichen list A

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

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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  

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith