Slippery White Bolete
Suillus placidus
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Suillus_placidus
Taxonomy & Classification
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Suillaceae
Genus
Suillus
Slippery White Bolete belongs to the family Suillaceae, order Boletales, within the Agaricomycetes class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Suillus placidus faces severe threats from habitat loss due to deforestation and conversion of its specialized pine forest ecosystems. Climate change is altering precipitation patterns and temperature regimes that affect both the fungus and its mycorrhizal pine host relationships. The species' limited distribution and specific ecological requirements make it particularly vulnerable to environmental changes.
Key Facts
Habitat & Distribution
Mycorrhizal associate of five-needle pine species, particularly found in montane coniferous forests and pine woodlands at elevations typically between 1,500-3,000 meters. Forms obligate symbiotic relationships with pine roots in well-drained, acidic soils of subalpine and montane ecosystems.
Threats
IUCN Red List: Critically Endangered
Suillus placidus faces severe threats from habitat loss due to deforestation and conversion of its specialized pine forest ecosystems. Climate change is altering precipitation patterns and temperature regimes that affect both the fungus and its mycorrhizal pine host relationships. The species' limited distribution and specific ecological requirements make it particularly vulnerable to environmental changes.
Climate change impacts on host tree relationships
Habitat loss and forest fragmentation
Altered soil chemistry from pollution
Fire regime changes
Overharvesting by collectors
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). Slippery White Bolete (Suillus placidus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/slippery-white-bolete