CRCritically Endangered

Muellerella hospitans

Local name: lehtopikkupisteikäs

Muellerella hospitans is a species of lichenicolous fungus in the family Verrucariaceae. It is known to infect the lichen Bacidia rubella.

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Eurotiomycetes

Order

Verrucariales

Family

Verrucariaceae

Genus

Muellerella

Muellerella hospitans belongs to the family Verrucariaceae, order Verrucariales, within the Eurotiomycetes class.

02Description

Species Profile

Muellerella hospitans is a species of lichenicolous fungus in the family Verrucariaceae. It is known to infect the lichen Bacidia rubella.

Muellerella hospitans faces severe population declines due to habitat destruction from deforestation and agricultural expansion across its limited range. The species' specialized ecological requirements and small population size make it extremely vulnerable to environmental changes and human disturbance.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

Inhabits temperate and boreal coniferous forests, particularly spruce-dominated ecosystems with rich understory vegetation. The species shows preference for mature forest stands with adequate moisture levels and specific microhabitat conditions.

TERRESTRIALMajor
04Threats

Threats

!

IUCN Red List: Critically Endangered

Muellerella hospitans faces severe population declines due to habitat destruction from deforestation and agricultural expansion across its limited range. The species' specialized ecological requirements and small population size make it extremely vulnerable to environmental changes and human disturbance.

Agricultural expansion

HighOngoing

Deforestation and habitat loss

HighOngoing

Small population size and genetic bottlenecks

HighOngoing

Climate change impacts on forest ecosystems

MediumOngoing

Human disturbance and fragmentation

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). Muellerella hospitans (Muellerella hospitans). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/lehtopikkupisteikas

Full citation guide & data usage terms