Hygrophorus cossus
CRCritically Endangered

Hygrophorus cossus

Local name: Hygrophore à odeur de cossus

Hygrophorus cossus is a species of fungus in the genus Hygrophorus. It is known for having a white color with a brownish tinge on its fruiting body.

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Hygrophorus_cossus

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Hygrophoraceae

Genus

Hygrophorus

Hygrophorus cossus belongs to the family Hygrophoraceae, order Agaricales, within the Agaricomycetes class.

02Description

Species Profile

Hygrophorus cossus is a species of fungus in the genus Hygrophorus. It is known for having a white color with a brownish tinge on its fruiting body.

Hygrophorus cossus is critically endangered primarily due to habitat loss and degradation of its specialized old-growth forest ecosystems. The species requires very specific ecological conditions including mature trees and stable soil chemistry, making it extremely vulnerable to forest management practices and environmental changes.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

TERRESTRIALMajor
04Threats

Threats

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IUCN Red List: Critically Endangered

Hygrophorus cossus is critically endangered primarily due to habitat loss and degradation of its specialized old-growth forest ecosystems. The species requires very specific ecological conditions including mature trees and stable soil chemistry, making it extremely vulnerable to forest management practices and environmental changes.

Intensive forest management practices

HighOngoing

Old-growth forest destruction

HighOngoing

Climate change impacts on forest ecosystems

MediumOngoing

Habitat fragmentation

MediumOngoing

Soil chemistry alteration

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). Hygrophorus cossus (Hygrophorus cossus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/hygrophore-a-odeur-de-cossus

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