Bitterlicher Rasling
VU

Bitterlicher Rasling

Lyophyllum amariusculum

Unknown

Photo: iNaturalist: (c) toniconca, some rights reserved (CC BY-NC)

Overview

Bitterlicher Rasling (Lyophyllum amariusculum) is a distinctive mushroom species characterized by its bitter taste and clustered growth habit, typically forming dense groups of grayish-brown caps with white to pale yellow stems. This saprophytic fungus plays a crucial ecological role in forest ecosystems by decomposing organic matter and recycling nutrients back into the soil. The species is particularly notable for its preference for specific microhabitat conditions and its sensitivity to environmental changes.

Bitterlicher Rasling faces significant threats from habitat degradation and loss of suitable forest ecosystems across its range. Climate change and altered precipitation patterns are affecting the delicate moisture conditions required for this fungal species to fruit and reproduce successfully. Additionally, pollution and changes in forest composition due to human activities are reducing the availability of appropriate host trees and soil conditions.

Threat summary

Habitat

This species occurs in temperate deciduous and mixed forests, particularly in areas with rich, well-drained soils and consistent moisture levels. It typically grows in association with broadleaf trees and requires specific soil chemistry and organic matter conditions for successful fruiting.

TERRESTRIAL· major

Frequently asked questions

Why is Bitterlicher Rasling classified as Vulnerable?
Bitterlicher Rasling is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Bitterlicher Rasling faces significant threats from habitat degradation and loss of suitable forest ecosystems across its range. Climate change and altered precipitation patterns are affecting the delicate moisture conditions required for this fungal species to fruit and reproduce successfully. Additionally, pollution and changes in forest composition due to human activities are reducing the availability of appropriate host trees and soil conditions.
Where does Bitterlicher Rasling live?
Bitterlicher Rasling occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Bitterlicher Rasling?
The main threats to Bitterlicher Rasling are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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