Protoblastenia incrustans
Local name: Indsænket gulskivelav
Protoblastenia incrustans is a crustose lichen species that forms thin, yellowish to orange-yellow crusty patches on rock surfaces. This inconspicuous lichen plays an important ecological role as a primary colonizer of bare rock substrates, contributing to initial soil formation processes and providing microhabitats for other organisms in harsh environments.
Taxonomy & Classification
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Lecanorales
Family
Psoraceae
Genus
Protoblastenia
Protoblastenia incrustans belongs to the family Psoraceae, order Lecanorales, within the Lecanoromycetes class.
Species Profile
Protoblastenia incrustans is a crustose lichen species that forms thin, yellowish to orange-yellow crusty patches on rock surfaces. This inconspicuous lichen plays an important ecological role as a primary colonizer of bare rock substrates, contributing to initial soil formation processes and providing microhabitats for other organisms in harsh environments.
Protoblastenia incrustans is critically endangered primarily due to habitat loss and degradation of its specialized coastal rock environments. The species faces severe pressure from coastal development, pollution, and climate change impacts including sea level rise and increased storm intensity that alter its rocky substrate habitats.
Key Facts
Habitat & Distribution
Protoblastenia incrustans grows on calcareous rocks, limestone outcrops, and concrete structures in exposed to semi-shaded locations. It typically colonizes vertical or slightly inclined surfaces where water runoff provides intermittent moisture while avoiding prolonged water saturation.
Threats
IUCN Red List: Critically Endangered
Protoblastenia incrustans is critically endangered primarily due to habitat loss and degradation of its specialized coastal rock environments. The species faces severe pressure from coastal development, pollution, and climate change impacts including sea level rise and increased storm intensity that alter its rocky substrate habitats.
Coastal development and urbanization
Habitat degradation from pollution
Limited population size and restricted range
Sea level rise and coastal erosion
Increased storm frequency and intensity
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). Protoblastenia incrustans (Protoblastenia incrustans). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/indsnket-gulskivelav