Cortinarius rufo-olivaceus
CRCritically Endangered

Cortinarius rufo-olivaceus

Local name: Violettroter Klumpfuß

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

Photo: (c) Marco Floriani, some rights reserved (CC BY-NC), uploaded by Marco Floriani

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Cortinariaceae

Genus

Cortinarius

Cortinarius rufo-olivaceus belongs to the family Cortinariaceae, order Agaricales, within the Agaricomycetes class.

02Description

Species Profile

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

Cortinarius rufo-olivaceus faces severe threats from habitat loss due to deforestation and forest fragmentation, which destroys the specific mycorrhizal relationships this fungus requires with its host trees. Climate change is altering temperature and moisture regimes in its native forest ecosystems, while pollution and soil contamination further degrade the delicate conditions necessary for its survival.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

This species occurs in mature deciduous and mixed forests, particularly in association with oak and beech trees where it forms essential mycorrhizal relationships. It typically inhabits well-drained forest soils with rich organic matter in temperate woodland ecosystems.

04Threats

Threats

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IUCN Red List: Critically Endangered

Cortinarius rufo-olivaceus faces severe threats from habitat loss due to deforestation and forest fragmentation, which destroys the specific mycorrhizal relationships this fungus requires with its host trees. Climate change is altering temperature and moisture regimes in its native forest ecosystems, while pollution and soil contamination further degrade the delicate conditions necessary for its survival.

Climate change impacts on forest ecosystems

HighOngoing

Disruption of mycorrhizal host relationships

HighOngoing

Habitat loss and forest fragmentation

HighOngoing

Changes in forest management practices

MediumOngoing

Soil pollution and contamination

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). Cortinarius rufo-olivaceus (Cortinarius rufo-olivaceus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/violettroter-klumpfu

Full citation guide & data usage terms