brun jordtunga
Geoglossum hakelieri
Brun jordtunga (Geoglossum hakelieri) is a distinctive earth tongue fungus characterized by its dark brown to blackish, club-shaped fruiting bodies that emerge from soil in grassland environments. These saprophytic fungi play a crucial ecological role in nutrient cycling by decomposing organic matter in soil and forming associations with grassland plant communities.
Taxonomy & Classification
Kingdom
Fungi
Phylum
Ascomycota
Class
Geoglossomycetes
Order
Geoglossales
Family
Geoglossaceae
Genus
Geoglossum
brun jordtunga belongs to the family Geoglossaceae, order Geoglossales, within the Geoglossomycetes class.
Species Profile
Brun jordtunga (Geoglossum hakelieri) is a distinctive earth tongue fungus characterized by its dark brown to blackish, club-shaped fruiting bodies that emerge from soil in grassland environments. These saprophytic fungi play a crucial ecological role in nutrient cycling by decomposing organic matter in soil and forming associations with grassland plant communities.
Brun jordtunga faces significant threats from habitat degradation and loss of suitable grassland ecosystems due to agricultural intensification and land use changes. The species' specialized ecological requirements and apparent rarity across its range make it particularly vulnerable to environmental pressures and climate-related shifts in habitat conditions.
Key Facts
Habitat & Distribution
This earth tongue fungus occurs in nutrient-poor grasslands, particularly old pastures and semi-natural grassland communities with low soil fertility. It typically grows in short, grazed turf on calcareous or neutral soils in open, unimproved grassland habitats.
Threats
Agricultural intensification and grassland conversion
Habitat fragmentation and degradation
Climate change affecting soil conditions and moisture regimes
Nitrogen deposition and soil chemistry changes
Overgrazing and trampling in remaining suitable habitats
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). brun jordtunga (Geoglossum hakelieri). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/brun-jordtunga