Two new species of lichenicolous Arthonia (Arthoniaceae) from southeastern North America highlight the need for comparative studies of lichen parasites and their hosts

Abstract. Arthonia frostiicola and A. galligena are described as new to science based on collections from mountainous regions of southeastern North America. Arthonia frostiicola infects the saxicolous lichen Dirinaria frostii, producing emarginate black apothecia which erupt from within the host thallus. It is characterized by a dark hypothecium and 1-septate, obovoid ascospores which turn brownish and verruculose in age. It is known from five collections made in the southern Appalachian Mountains and Ozark Mountains in southeastern North America. Arthonia galligena produces galls in the thallus and apothecia of the corticolous lichens Lecanora masana and L. rugosella, and is apparently endemic to the high elevations of the southern Appalachian Mountains. It is characterized by a variably pigmented, pale to red-brown hypothecium and 2-septate, macrocephalic ascospores which turn brownish and verruculose in age. Keys to the species of Arthonia on Caliciales and Lecanoraceae are provided.

• Publication year

  2024

• Venue

  The Bryologist

• Publication date

  2024-01-15

• Fields of study

  Not labeled

• Identifiers
  DOI 10.1639/0007-2745-127.1.001
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Finding the needle in the haystack: a revision of Crittendenia, a surprisingly diverse lichenicolous genus of Agaricostilbomycetes, Pucciniomycotina

  2022cited by this paper
• Climate and epiphytic macrolichen communities in the Four Corners region of the U.S.A.

  2022cited by this paper
• Drivers of arboreal lichen community structure and diversity on Abies balsamea and Betula alleghaniensis in the Avalon Forest Ecoregion, Newfoundland

  2021cited by this paper
• Capronia harrisiana (Ascomycota, Chaetothyriales), a new lichenicolous species on Crocodia aurata from the southern Appalachian Mountains of southeastern North America

  2021cited by this paper
• Rare inventory of trematode diversity in a protected natural reserve

  2021cited by this paper
• Turnover of Lecanoroid Mycobionts and Their Trebouxia Photobionts Along an Elevation Gradient in Bolivia Highlights the Role of Environment in Structuring the Lichen Symbiosis

  2021cited by this paper
• Contrasting drivers of diversity in hosts and parasites across the tropical Andes

  2021cited by this paper
• Two New Lichenicolous Species of Opegrapha (Arthoniales) from Canada

  2021influential reference
• Proposed best practices for taxonomic innovations in lichen and allied Fungi: A framework derived from analysis of more than 1,000 new taxa and new combinations

  2021influential reference
• Contrasting Environmental Drivers Determine Biodiversity Patterns in Epiphytic Lichen Communities along a European Gradient

  2020cited by this paper
• Delmarva Lichens: An Illustrated Manual

  2020cited by this paper
• What determines parasite species richness across host species?

  2020cited by this paper
• Highlights from 10+ Years of Lichenological Research in Great Smoky Mountains National Park: Celebrating the United States National Park Service Centennial

  2019cited by this paper
• Relationships between mycobiont identity, photobiont specificity and ecological preferences in the lichen genus Peltigera (Ascomycota) in Estonia (northeastern Europe)

  2019cited by this paper
• The Extended Specimen Network: A Strategy to Enhance US Biodiversity Collections, Promote Research and Education

  2019cited by this paper
• Lichenicolous fungi from Florida growing on Graphidales

  2019cited by this paper
• Lichenicolous fungi are more specialized than their lichen hosts in primeval forest ecosystems, Białowieża Forest, northeast Poland

  2019cited by this paper
• The generic name Abrothallus (Abrothallales, Dothideomycetes), and names proposed in the genus by Giuseppe De Notaris, Søren Christian Sommerfelt, and Ignaz Kotte

  2018cited by this paper
• The 2018 classification and checklist of lichenicolous fungi, with 2000 non-lichenized, obligately lichenicolous taxa

  2018influential reference
• The lichenicolous fungi of the South Shetland Islands, Antarctica: species diversity and identification guide

  2018cited by this paper
• On the Distribution and Habitat of Fuscopannaria leucosticta in New Brunswick, Canada

  2018cited by this paper
• Environment and host identity structure communities of green algal symbionts in lichens.

  2018cited by this paper
• Notes on the lichen genus Lecania (Ramalinaceae) in Iran, with the description of a new Arthonia species (Arthoniaceae)

  2018cited by this paper
• The new records of lichenicolous fungi from Ukrainian Carpathians

  2018cited by this paper
• Noteworthy Records of Lichenicolous Fungi from Various Countries on the Balkan Peninsula

  2018cited by this paper
• Arthonia toensbergii, a new lichenicolous fungus on Mycoblastus affinis from the boreal rainforests in Norway

  2018cited by this paper
• Checklist of Lichen-Forming, Lichenicolous and Allied Fungi of Eagle Hill and Its Vicinity, Maine

  2017cited by this paper
• Diversity begets diversity in competition for space

  2017cited by this paper
• The effects of bark quality on corticolous lichen community composition in urban parks of southern Ontario

  2017cited by this paper
• New Species and New Records of Lichens and Lichenicolous Fungi from the Seychelles

  2017cited by this paper
• Beyond troubled waters: the influence of eutrophication on host–parasite interactions

  2017cited by this paper
• Ergänzungen zur Flechtenflora von Madeira mit besonderer Berücksichtigung lichenicoler Pilze

  2016cited by this paper
• Lecanora insignis (Lecanoraceae) and its lichenicolous fungi in North America, including a new species of Skyttea (Helotiales)

  2016cited by this paper
• Paradigms for parasite conservation

  2016cited by this paper
• Arthonia parietinaria - A common but frequently misunderstood lichenicolous fungus on species of the Xanthoria parietina-group.

  2016cited by this paper
• Climate change impacts on endemic, high-elevation lichens in a biodiversity hotspot

  2016influential reference
• A Review of the Lichens of the Dare Regional Biodiversity Hotspot in the Mid-Atlantic Coastal Plain of North Carolina, Eastern North America

  2016influential reference
• A molecular reappraisal of Abrothallus species growing on lichens of the order Peltigerales

  2015cited by this paper
• Lichenicolous Fungi from Central Italy with Notes on Some Remarkable Hepaticolous, Algicolous and Lichenized Fungi

  2015cited by this paper
• Ecological Specialization of Two Photobiont-Specific Maritime Cyanolichen Species of the Genus Lichina

  2015cited by this paper
• A three-way perspective of stoichiometric changes on host-parasite interactions.

  2015cited by this paper
• Notes on the California Lichen Flora 7: More New Records.

  2015cited by this paper
• Lichenicolous species of the Ascomycete genus Arthonia Ach. from Kangaroo Island

  2015influential reference
• The Arthonialean challenge: restructuring Arthoniaceae

  2014influential reference
• Parasite biodiversity revisited: frontiers and constraints.

  2014cited by this paper
• A revision of the epiphytic species of the Lecanora subfusca group (Lecanoraceae, Ascomycota) in the Czech Republic

  2014cited by this paper
• Four new Arthoniomycetes from Bwindi Impenetrable National Park, Uganda - supported by molecular data

  2014influential reference
• Symbiont flexibility in subalpine rock shield lichen communities in the Southwestern USA

  2013cited by this paper
• A new lichenicolous Arthonia species (Arthoniaceae) on Diorygma from India

  2013cited by this paper
• Lichenicolous fungi and some allied lichens from the Canadian Arctic

  2013cited by this paper
• Neglected wild life: Parasitic biodiversity as a conservation target

  2013cited by this paper
• Checklist of Lichenicolous Fungi and Lichenicolous Lichens of Svalbard, Including New Species, New Records and Revisions

  2013cited by this paper
• The Lichens and Allied Fungi of Great Smoky Mountains National Park

  2013cited by this paper
• A first checklist of lichenicolous fungi from the Dominican Republic, including the description of a new species of Xenonectriella.

  2013cited by this paper
• A conservation evaluation of British lichens and lichenicolous fungi

  2012cited by this paper
• Ascospore ontogeny and discharge in megalosporous Trypetheliaceae and Graphidaceae (Ascomycota: Dothideomycetes and Lecanoromycetes) suggest phylogenetic relationships and ecological constraints

  2012cited by this paper
• Global Gradients in Vertebrate Diversity Predicted by Historical Area-Productivity Dynamics and Contemporary Environment

  2012cited by this paper
• Host and geographic structure of endophytic and endolichenic fungi at a continental scale.

  2012cited by this paper
• Arthonia anatolica sp. nov. (Arthoniaceae) on Aspicilia contorta subsp. hoffmanniana, a new lichenicolous species from Turkey

  2011cited by this paper
• Elevational Gradients in Species Richness

  2010cited by this paper
• Weitere Funde von flechtenbewohnenden Pilzen in Bayern – Beitrag zu einer Checkliste IV

  2009cited by this paper
• Arthonia protoparmeliopseos, a new lichenicolous fungus on Protoparmeliopsis muralis from Spain and Luxembourg

  2009cited by this paper
• Is There a Latitudinal Gradient in the Importance of Biotic Interactions

  2009cited by this paper
• Two new lichenicolous Arthonia species from Turkey

  2009cited by this paper
• A new approach to visualize ecosystem health by using parasites

  2009cited by this paper
• The sixth mass coextinction: are most endangered species parasites and mutualists?

  2009cited by this paper
• Arthonia hawksworthii sp.nov. (Ascomycota, Arthoniaceae) on Dimelaena oreina from Turkey

  2008cited by this paper
• The role of biotic factors in the transmission of free-living endohelminth stages

  2008cited by this paper
• An annotated key to the lichenicolous Ascomycota (including mitosporic morphs) of Sweden

  2008influential reference
• Old forest remnants contribute to sustaining biodiversity: The case of the Albert River valley

  2007cited by this paper
• The use of fish parasites as biological indicators of anthropogenic influences in coral-reef lagoons: a case study of Apogonidae parasites in New-Caledonia.

  2007cited by this paper
• Phorophyte specificity and environmental parameters versus stochasticity as determinants for species composition of corticolous crustose lichen communities in the Atlantic rain forest of northeastern Brazil

  2007cited by this paper
• Could temperature and water availability drive elevational species richness patterns? A global case study for bats

  2006cited by this paper
• Is a healthy ecosystem one that is rich in parasites?

  2006cited by this paper
• Impacts of parasitic plants on natural communities.

  2005cited by this paper
• Arthonia biatoricola sp. nov. from north-western Europe and northern Pacific North America

  2004cited by this paper
• Influence of Tree Substrate on the Diversity of Epiphytic Lichens: Comparison Between Tilia platyphyllos and Quercus ilex (Central Italy)

  2004cited by this paper
• Macroecological patterns of species richness in parasite assemblages

  2004cited by this paper
• Large-scale determinants of trematode infections in intertidal gastropods

  2003cited by this paper
• Lichenicolous fungi occurring on Roccellaceae (Arthoniales) I. New species from south America

  2003cited by this paper
• ENERGY, WATER, AND BROAD‐SCALE GEOGRAPHIC PATTERNS OF SPECIES RICHNESS

  2003cited by this paper
• Lichenicolous Fungi: Interactions, Evolution, and Biodiversity

  2003cited by this paper
• Two New Species of Caloplaca (Teloschistaceae) from the Southern Hemisphere

  2002cited by this paper
• On lichenicolous fungi from North America. II

  2002cited by this paper
• Host population density and body mass as determinants of species richness in parasite communities: comparative analyses of directly transmitted nematodes of mammals

  2002cited by this paper
• Rinodina intermedia (Physciaceae, Lichenized Ascomycetes): A Well-characterized Species with Submuriform Ascospores

  2001cited by this paper
• Global patterns in biodiversity

  2000cited by this paper
• Precious heritage : the status of biodiversity in the United States

  2000cited by this paper
• War in the world of lichens: parasitism and symbiosis as exemplified by lichens and lichenicolous fungi

  1999cited by this paper
• Lichenicolous Species of Arthonia on Lobariaceae with Notes on Excluded Taxa

  1998influential reference
• Phylogenetic Studies of the Genus Arthonia

  1998cited by this paper
• Classification and phylogeny in the Arthoniales (Lichenized Ascomycetes)

  1998cited by this paper
• Lichens and lichenicolous fungi from New Guinea

  1997cited by this paper
• Ascospore septation inDiploschistes (Thelotremataceae, lichenizedAscomycota) and the taxonomic significance of macro- and microcephalic ascospore types

  1997cited by this paper
• The lichenicolous heterobasidiomycetes

  1996cited by this paper
• Lichenicolous Ascomycetes with fissitunicate asci on foliicolous lichens

  1996cited by this paper
• A Preliminary Account of the Lichenicolous Arthonia Species with Reddish, K+ Reactive Pigments

  1995cited by this paper
• Lichens and lichenicolous fungi on Laing Island (Papua New Guinea)

  1995cited by this paper
• Arthonia pragensis spec. nov. (Ascomycetes, Arthoniales), a new lichenicolous fungus from the Czech Republic.

  1994cited by this paper
• The inter-lecanoralean associations

  1994cited by this paper

• Contribution to the knowledge of the lichenicolous mycobiota of the Alps II. – Six new species from Austria and Switzerland

  2025cites this paper
• The 2025 classification and checklist of lichenicolous fungi: documenting a rapidly growing knowledge of diversity

  2025cites this paper