ENEndangered

Cortinarius hillieri

Local name: glatt villsvinslørsopp

Cortinarius hillieri is a rare mycorrhizal fungus with distinctive smooth, brownish caps and cobweb-like veils characteristic of the Cortinarius genus. This endangered species forms essential symbiotic relationships with tree roots, facilitating nutrient exchange and supporting forest ecosystem health through its underground fungal networks.

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Cortinariaceae

Genus

Cortinarius

Cortinarius hillieri belongs to the family Cortinariaceae, order Agaricales, within the Agaricomycetes class.

02Description

Species Profile

Cortinarius hillieri is a rare mycorrhizal fungus with distinctive smooth, brownish caps and cobweb-like veils characteristic of the Cortinarius genus. This endangered species forms essential symbiotic relationships with tree roots, facilitating nutrient exchange and supporting forest ecosystem health through its underground fungal networks.

Cortinarius hillieri faces severe decline due to habitat loss from deforestation and land conversion in its limited range. The species' specialized ecological requirements and small population size make it particularly vulnerable to environmental changes and human disturbance.

Key Facts

IUCN StatusEndangered (EN)
GroupFungi
03Habitat

Habitat & Distribution

This fungus inhabits mature deciduous and mixed forests, particularly favoring areas with rich, well-drained soils and established root systems of oak, beech, and birch trees. It typically fruits in late summer to autumn in undisturbed woodland areas with stable soil chemistry and minimal human interference.

TERRESTRIALMajor
04Threats

Threats

!

IUCN Red List: Endangered

Cortinarius hillieri faces severe decline due to habitat loss from deforestation and land conversion in its limited range. The species' specialized ecological requirements and small population size make it particularly vulnerable to environmental changes and human disturbance.

Habitat loss and fragmentation from deforestation

HighOngoing

Land use conversion for agriculture and development

HighOngoing

Small population size and restricted range

HighOngoing

Climate change affecting forest ecosystems

MediumOngoing

Disturbance to forest floor and mycorrhizal relationships

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 hillieri (Cortinarius hillieri). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/glatt-villsvinslrsopp

Full citation guide & data usage terms