Rimmed Wart Lichen
Varicellaria velata
Conservation status data sourced from the IUCN Red List of Threatened Species.
Taxonomy & Classification
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Pertusariales
Family
Varicellariaceae
Genus
Varicellaria
Rimmed Wart Lichen belongs to the family Varicellariaceae, order Pertusariales, within the Lecanoromycetes class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Rimmed Wart Lichen faces severe threats from air pollution and habitat degradation, as lichens are extremely sensitive to atmospheric contaminants and changes in air quality. Climate change is altering precipitation patterns and temperature regimes in its specialized habitats, while deforestation and urban development continue to destroy the old-growth forest ecosystems this species depends upon.
Key Facts
Habitat & Distribution
This lichen species typically inhabits the bark of old-growth deciduous and mixed forests, particularly favoring mature trees in humid, shaded environments with stable microclimates. It requires areas with minimal air pollution and consistent moisture levels, often found in undisturbed forest ecosystems at various elevations.
Threats
IUCN Red List: Critically Endangered
Rimmed Wart Lichen faces severe threats from air pollution and habitat degradation, as lichens are extremely sensitive to atmospheric contaminants and changes in air quality. Climate change is altering precipitation patterns and temperature regimes in its specialized habitats, while deforestation and urban development continue to destroy the old-growth forest ecosystems this species depends upon.
Air pollution and atmospheric contamination
Climate change and altered precipitation patterns
Deforestation and habitat loss
Changes in forest management practices
Urban development and infrastructure expansion
Community Sightings
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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). Rimmed Wart Lichen (Varicellaria velata). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/rimmed-wart-lichen