CRCritically Endangered

Buellia elegans

Local name: praktbønnelav

Conservation status data sourced from the IUCN Red List of Threatened Species.

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Caliciales

Family

Caliciaceae

Genus

Buellia

Buellia elegans belongs to the family Caliciaceae, order Caliciales, within the Lecanoromycetes class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

Buellia elegans faces severe threats from air pollution and acid rain, which directly damage its sensitive lichen thalli and disrupt the symbiotic relationship between fungal and algal components. Urban development and habitat destruction have eliminated many suitable substrates, while climate change alters the specific microclimate conditions this species requires for survival.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

This crustose lichen grows on the bark of deciduous trees, particularly in old-growth forests and mature woodland environments with stable humidity and minimal air pollution. It requires specific bark chemistry and microclimate conditions found on aged tree trunks in undisturbed forest ecosystems.

04Threats

Threats

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IUCN Red List: Critically Endangered

Buellia elegans faces severe threats from air pollution and acid rain, which directly damage its sensitive lichen thalli and disrupt the symbiotic relationship between fungal and algal components. Urban development and habitat destruction have eliminated many suitable substrates, while climate change alters the specific microclimate conditions this species requires for survival.

Air pollution and acid rain

HighOngoing

Climate change and altered precipitation patterns

HighOngoing

Urban development and habitat loss

HighOngoing

Industrial emissions and nitrogen deposition

MediumOngoing

Loss of suitable bark substrates

MediumOngoing
Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). Buellia elegans (Buellia elegans). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/praktbnnelav

Full citation guide & data usage terms