Frayed Parasol
VU

Frayed Parasol

Macrolepiota excoriata

Unknown

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

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The Frayed Parasol faces significant decline due to habitat degradation from agricultural intensification and urban development across its European range. Nitrogen deposition from atmospheric pollution alters soil chemistry, disrupting the delicate mycorrhizal relationships essential for this grassland fungus. Climate change compounds these pressures through altered precipitation patterns and temperature extremes that affect fruiting body formation and spore viability.

Threat summary

Habitat

The Frayed Parasol inhabits nutrient-poor grasslands, chalk downs, and sandy heathlands across Europe, particularly favoring calcareous soils with low nitrogen levels. It forms mycorrhizal associations with grasses and herbs in semi-natural grassland ecosystems that have remained relatively undisturbed by intensive agriculture.

TERRESTRIAL· major

Other threatened species in Agaricaceae

VU

Lepiota echinella

Unknown
Lepiota ignivolvataVU

Lepiota ignivolvata

Unknown
Cystodermella granulosaVU

Cystodermella granulosa

Unknown
Tulostoma kotlabaeCR

Tulostoma kotlabae

Unknown

Frequently asked questions

Why is Frayed Parasol classified as Vulnerable?
Frayed Parasol 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. The Frayed Parasol faces significant decline due to habitat degradation from agricultural intensification and urban development across its European range. Nitrogen deposition from atmospheric pollution alters soil chemistry, disrupting the delicate mycorrhizal relationships essential for this grassland fungus. Climate change compounds these pressures through altered precipitation patterns and temperature extremes that affect fruiting body formation and spore viability.
Where does Frayed Parasol live?
Frayed Parasol 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 Frayed Parasol?
The main threats to Frayed Parasol 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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