Bolet chauve
Hemileccinum depilatum
Bolet chauve (Hemileccinum depilatum) is a distinctive bolete mushroom characterized by its smooth, hairless cap surface that gives it its common name. This mycorrhizal fungus forms essential symbiotic relationships with tree roots, facilitating nutrient exchange and supporting forest ecosystem health through its underground hyphal networks.
Photo: iNaturalist: (c) Davide Puddu, some rights reserved (CC BY), uploaded by Davide Puddu
Taxonomy & Classification
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Boletaceae
Genus
Hemileccinum
Bolet chauve belongs to the family Boletaceae, order Boletales, within the Agaricomycetes class.
Species Profile
Bolet chauve (Hemileccinum depilatum) is a distinctive bolete mushroom characterized by its smooth, hairless cap surface that gives it its common name. This mycorrhizal fungus forms essential symbiotic relationships with tree roots, facilitating nutrient exchange and supporting forest ecosystem health through its underground hyphal networks.
Hemileccinum depilatum faces severe decline due to habitat loss from deforestation and agricultural conversion of its specialized forest ecosystems. Climate change and pollution further threaten the delicate mycorrhizal relationships this fungus depends on for survival.
Key Facts
Habitat & Distribution
Hemileccinum depilatum inhabits mature deciduous and mixed forests, particularly favoring areas with well-drained, slightly acidic soils rich in organic matter. The species is typically found in association with oak, beech, and other hardwood trees where it can establish its critical mycorrhizal partnerships.
Threats
IUCN Red List: Endangered
Hemileccinum depilatum faces severe decline due to habitat loss from deforestation and agricultural conversion of its specialized forest ecosystems. Climate change and pollution further threaten the delicate mycorrhizal relationships this fungus depends on for survival.
Agricultural land conversion
Deforestation and forest fragmentation
Climate change affecting mycorrhizal host trees
Soil pollution and chemical contamination
Over-collection for commercial purposes
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). Bolet chauve (Hemileccinum depilatum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/bolet-chauve