List of Arthonia species

This is a list of species in the fungal genus Arthonia, which contains both lichen-forming fungi, and lichenicolous (lichen-dwelling) fungi. As of September 2025, Species Fungorum accepts 164 species of Arthonia. The Arthonia species accepted by Species Fungorum are those for which they have expressed a taxonomic opinion, and does not necessarily represent the total number of species in the family. Although more than 1600 taxa have at one time been placed in the genus, the majority of these are now either considered synonyms of other species, have been moved to other genera, or are too little-known and have been collected too infrequently to have had a taxonomic opinion expressed about them. Recent estimates for the number of species in the genus include 491 (2008), 500 (2017), and 50 species with 300 "orphaned" species (2021). According to a 2018 review of lichenicolous fungi, there are 139 lichenicolous fungi and 1 lichenicolous lichen in Arthonia. In the following list, the host(s) of the lichenicolous taxa are given.

• Arthonia acanthotheciicola • Arthonia aciniformis • Arthonia agelastica – host: Lecanora louisiana • Arthonia albofarinosa • Arthonia albopulverea • Arthonia albotrachynae – host: Hypotrachyna endochlora • Arthonia almquistii – hosts: Amygdalaria, Koerberiella, Porpidia, and Trapelia • Arthonia amandineicola – Panama; host: Amandinea efflorescens • Arthonia amoena • Arthonia amylospora – hosts: Porpidia and Farnoldia • Arthonia anatolica – host: Aspicilia contorta • Arthonia andamanica • Arthonia anglica • Arthonia anjutia – host: Teloschistes • Arthonia apatetica • Arthonia apteropteridis – Tasmania • Arthonia arthoniicola – host: Arthonia catenulata • Arthonia arthonioides • Arthonia aspiciliae – Greenland; host: Aspicilia • Arthonia atra • Arthonia atropunctata – host: on sterile foliicolous cf. Echinoplaca • Arthonia ayseniae – host: Acarospora ==B==

• Arthonia badia – host: Pseudocyphellaria granulata • Arthonia banksiae • Arthonia brussei – host: Lecanographa • Arthonia buelliae ==C==

• Arthonia caerulescens – host: Lecanora varia • Arthonia calcarea • Arthonia calicii – Kangaroo Island; host: Calicium tricolor • Arthonia catillarioides – host: Sticta • Arthonia circinata – host: Umbilicaria • Arthonia clemens – host: Rhizoplaca • Arthonia cohabitans – host: Arthothelium reagens • Arthonia colombiana – host: Cladonia • Arthonia complanata • Arthonia coniocraeae – host: Cladonia coniocraea • Arthonia conspersula • Arthonia coreana – South Korea • Arthonia coriifoliae – Magallanes; host: Pseudocyphellaria coriifolia • Arthonia coronata – host: Flavoparmelia caperata • Arthonia cyanea • Arthonia cryptica • Arthonia cryptotheciae – host: foliicolous Myriostigma candida ==D==

• Arthonia darbishirei – South America; host: Roccella nigerrima • Arthonia delicatula • Arthonia destruens ::var. destruens : host: Physcia ::var. nana – host: Oxneria fallax • Arthonia didyma • Arthonia digitatae – host: Cladonia • Arthonia digitispora – host: Sticta • Arthonia diorygmatis – India; host: Diorygma • Arthonia diploiciae – host: Diploicia canescens ==E==

• Arthonia epifarinosa – Chile; host: Pannaria • Arthonia epiparmelia – Russia • Arthonia epipolytropa – Austria; host: Lecanora polytropa • Arthonia epitoninia – Turkey; host: Toninia • Arthonia excentrica – host: Lepraria • Arthonia exilis ==F==

• Arthonia farinacea – host: on Ramalina, especially R. farinacea • Arthonia farinosorediata – Brazil • Arthonia flavicantis – host: Pseudocyphellaria flavicans • Arthonia follmanniana – Galápagos Islands; host: Roccella • Arthonia fuscopurpurea – host: Peltigera ==G==

• Arthonia galactites • Arthonia garajonayi – Canary Islands; host: Porina • Arthonia gattefossei • Arthonia gelidae – Placopsis gelida • Arthonia glacialis – host: Rhizoplaca melanophthalma • Arthonia gracilenta • Arthonia gracilior • Arthonia gracillima • Arthonia graphidicola – host: Graphis scripta • Arthonia griseopruinosa – host: Pertusaria pseudocorallina • Arthonia gutberletiana ==H==

• Arthonia haematommatum • Arthonia haematostigma • Arthonia hawksworthii – Western Asia; host: Dimelaena • Arthonia hertelii – host: Aspicilia • Arthonia heterodermiae – host: Heterodermia ==I==

• Arthonia ilicina • Arthonia ilicinella • Arthonia infectans – western USA; host: juvenile lichenicolous on Lecanographa hypothallina and Sparria cerebriforme • Arthonia ingaderiae – South America; host: Ingaderia • Arthonia insularis – host: Sirenophila eos • Arthonia interstes • Arthonia intermedia – Costa Rica; host: foliicolous Porina • Arthonia intexta – host: Lecidella • Arthonia invadens – host: Schismatomma quercicola • Arthonia isidiata – Costa Rica ==J==

• Arthonia japewiae – host: Japewia ==L==

• Arthonia lecaniicola – Iran; host: Lecania triseptata • Arthonia lecanorina • Arthonia lecideicola – Russia • Arthonia lecideola • Arthonia lepidiota • Arthonia leptospora • Arthonia lethariicola – Canada; host: Letharia • Arthonia leucomelodis – host: Leucodermia leucomelos • Arthonia ligniaria • Arthonia ligniariella • Arthonia lividula • Arthonia lobothalliae – host: Lobothallia alphoplaca ==M==

• Arthonia maculiformis – host: Pseudocyphellaria glabra and P. homoeophylla • Arthonia marginalis – Chile; host: Pseudocyphellaria • Arthonia mediella • Arthonia meridionalis • Arthonia microsperma • Arthonia minor • Arthonia mirabilis • Arthonia miserula • Arthonia montagnei • Arthonia myriocarpella ==N==

• Arthonia navasiana – host: Lepraria • Arthonia nigratula • Arthonia nigrorufa • Arthonia novaecaledoniae – New Caledonia • Arthonia nymphaeoides ==O==

• Arthonia obscurior – Greenland; host: Pilophorus dovrensis • Arthonia oligospora – Bulgaria; host: Myriolecis crenulata • Arthonia orchidicida ==P==

• Arthonia palmulacea • Arthonia pannariae – hosts: Protopannaria pezizoides and Psoroma hypnorum • Arthonia pantherina – Spain; host: Pertusaria pustulata • Arthonia parantillarum • Arthonia patellulata • Arthonia peltigerae – Peltigera and Solorina • Arthonia pepei – Europe; host: Parmelina • Arthonia peraffinis • Arthonia perparva • Arthonia phaeobaea • Arthonia phlyctiformis • Arthonia physcidiicola – Africa; host: Physcidia wrightii • Arthonia plectocarpoides – host: Pseudocyphellaria scabrosa • Arthonia pocsii – Africa • Arthonia polia – host: Diploicia canescens • Arthonia polydactylonis – host: Peltigera polydactylon • Arthonia portuensis • Arthonia pragensis – Europe; host: Caloplaca teicholyta • Arthonia prominens – South America; host: Pentagenella gracillima • Arthonia propinqua • Arthonia protoparmeliae – host: Protoparmelia badia • Arthonia protoparmeliopsidis – Western Europe; host: Protoparmeliopsis muralis • Arthonia pruinascens • Arthonia pseudocyphellariae – host: Pseudocyphellaria multifida • Arthonia pseudopegraphina – Brazil; host: foliicolous Mazosia • Arthonia pseudostromatica – USA • Arthonia punctella – host: Diplotomma • Arthonia punctiformis ==R==

• Arthonia radiata • Arthonia punctilliformis • Arthonia rangiformicola – host: Cladonia rangiformis • Arthonia redingeri • Arthonia rimularum • Arthonia rinodinicola – Turkey; host: Rinodina oleae • Arthonia rubella • Arthonia rubrocincta • Arthonia rufidula ==S==

• Arthonia sagenidii – Tasmania; host: Lecanactis mollis • Arthonia samdykeana • Arthonia sampaianae – host: Nevesia sampaiana • Arthonia sanguinaria – Japan • Arthonia santessoniana • Arthonia santessonii • Arthonia saxistellata – Brazil; host: Pseudocyphellaria scabrosa • Arthonia semi-immersa – host: Pseudocyphellaria • Arthonia sherparum – Nepal; host: Lecanora sherparum • Arthonia sororiella • Arthonia speciosa • Arthonia squamarinae – host: Squamarina • Arthonia stellaris • Arthonia stevensoniana – host: Haematomma accolens • Arthonia stictaria – Pseudocyphellaria • Arthonia stipitata – Brazil; host: unidentified sterile, sorediate, corticolous lichen • Arthonia subaggregata – host: Pseudocyphellaria hirsuta • Arthonia subantarctica • Arthonia subclemens – Italy; host: Lecanora polytropa • Arthonia subcondita • Arthonia subconveniens – host: Lobaria • Arthonia subfuscicola – host: Lecanora albella and L. carpinea • Arthonia subgraphidicola • Arthonia subgyrosa • Arthonia superpallens – South Korea • Arthonia susa – USA • Arthonia sytnikii – Australia; host: Dufourea ==T==

• Arthonia tabescens – host: Parmelia saxatilis • Arthonia tasmanica – Tasmania • Arthonia tavaresii – Canary Islands; host: Anthracothecium and Pyrenula • Arthonia tetraspora – host: Caloplaca chilensis • Arthonia thelotrematis – host: Thelotrema • Arthonia thoriana • Arthonia thozetiana • Arthonia toensbergii – Europe; host: Mycoblastus affinis • Arthonia tremelloides – host: Heterodermia • Arthonia triebeliae – Arctic; host: Dactylina • Arthonia trifurcata • Arthonia trilocularis ==U==

• Arthonia ulleungdoensis – South Korea • Arthonia urceolata – host: Aspicilia ==V==

• Arthonia varians – hosts: Glaucomaria rupicola, G. bicincta, G. swartzii, and Lecanora helicopis • Arthonia vinosa • Arthonia vorsoeensis – Europe; host: Amandinea punctata ==W==

Source: Wikipedia ↗

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