Tiger Sawgill
CRCritically Endangered

Tiger Sawgill

Lentinus tigrinus

# Tiger Sawgill (Lentinus tigrinus) The Tiger Sawgill is a distinctive wood-decomposing fungus characterized by its cream to pale brown cap with darker, tiger-like striping patterns. The mushroom features a tough, leathery texture and distinctive gills with serrated edges that give it the "sawgill" name.

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Countries

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

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Polyporales

Family

Polyporaceae

Genus

Lentinus

Tiger Sawgill belongs to the family Polyporaceae, order Polyporales, within the Agaricomycetes class.

02Description

Species Profile

# Tiger Sawgill (Lentinus tigrinus) The Tiger Sawgill is a distinctive wood-decomposing fungus characterized by its cream to pale brown cap with darker, tiger-like striping patterns. The mushroom features a tough, leathery texture and distinctive gills with serrated edges that give it the "sawgill" name. As a saprobic species, it plays a crucial ecological role in forest ecosystems by breaking down dead hardwood, particularly favoring decaying logs and stumps of deciduous trees. This fungus demonstrates remarkable global distribution, occurring across six continents from temperate forests in Europe and North America to tropical regions in South America, Africa, and Asia. It inhabits diverse terrestrial environments, typically found in deciduous and mixed woodlands where it colonizes dead or dying hardwood substrates. Despite its widespread historical range, the Tiger Sawgill faces critical endangerment with an unknown population trend. While specific threats have not been formally assessed, the species' decline likely correlates with habitat loss through deforestation, forest fragmentation, and changes in forest management practices that reduce dead wood availability. Climate change may also affect its distribution and reproductive success across different regions. Currently, no specific conservation measures have been documented for this species. The lack of comprehensive threat assessment and population monitoring represents a significant knowledge gap hindering effective conservation planning. The Tiger Sawgill's outlook remains uncertain due to insufficient data on population trends and threat severity. Its critical conservation status across such an extensive range suggests substantial decline, though the species' broad geographic distribution may provide some resilience if suitable habitat conditions persist in certain regions.

Habitat loss through deforestation and intensive forest management practices that remove dead wood have severely reduced available substrates for this fungus. Climate change and altered precipitation patterns are disrupting the specific moisture conditions required for spore germination and mycelial growth, while air pollution may be affecting its sensitive reproductive processes.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

Tiger Sawgill grows exclusively on decaying logs and stumps of broadleaf trees in mature deciduous and mixed forests, particularly favoring oak-dominated woodlands with high humidity levels. The species requires forests with substantial amounts of coarse woody debris and minimal human disturbance to maintain stable moisture conditions.

TERRESTRIALMajor
04Threats

Threats

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IUCN Red List: Critically Endangered

Habitat loss through deforestation and intensive forest management practices that remove dead wood have severely reduced available substrates for this fungus. Climate change and altered precipitation patterns are disrupting the specific moisture conditions required for spore germination and mycelial growth, while air pollution may be affecting its sensitive reproductive processes.

Climate change impacts

UnknownOngoing

Forest fragmentation

UnknownOngoing

Habitat loss and degradation

UnknownOngoing
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). Tiger Sawgill (Lentinus tigrinus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/tiger-sawgill

Full citation guide & data usage terms