Two Spored Milkcap
CRCritically Endangered

Two Spored Milkcap

Lactarius acerrimus

Conservation status data sourced from the IUCN Red List of Threatened Species.

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

01Classification

Taxonomy & Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Russulales

Family

Russulaceae

Genus

Lactarius

Two Spored Milkcap belongs to the family Russulaceae, order Russulales, within the Agaricomycetes class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

The Two Spored Milkcap faces severe population declines due to widespread habitat destruction and degradation of its specialized forest ecosystems. Climate change is altering the delicate mycorrhizal relationships this fungus depends on, while increased human disturbance and pollution further threaten remaining populations.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupFungi
03Habitat

Habitat & Distribution

Deciduous and mixed woodlands, particularly beech and oak forests with rich, calcareous soils. Forms mycorrhizal associations with broadleaf trees in mature forest ecosystems across temperate regions.

TERRESTRIALMajor
04Threats

Threats

!

IUCN Red List: Critically Endangered

The Two Spored Milkcap faces severe population declines due to widespread habitat destruction and degradation of its specialized forest ecosystems. Climate change is altering the delicate mycorrhizal relationships this fungus depends on, while increased human disturbance and pollution further threaten remaining populations.

Climate change impacts on mycorrhizal host relationships

HighOngoing

Habitat loss and forest fragmentation

HighOngoing

Changes in forest management practices

MediumOngoing

Human disturbance and trampling

MediumOngoing

Soil pollution and chemical contamination

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). Two Spored Milkcap (Lactarius acerrimus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/two-spored-milkcap

Full citation guide & data usage terms