Gemarmerde gordijnzwam
CR

Gemarmerde gordijnzwam

Cortinarius chevassutii

Unknown

Photo: Photo: (c) Marco Floriani, some rights reserved (CC BY-NC), uploaded by Marco Floriani

Overview

Gemarmerde gordijnzwam (Cortinarius chevassutii) is a rare mushroom species characterized by its distinctive marbled or mottled cap coloration and the characteristic cortina (web-like veil) typical of Cortinarius fungi. This mycorrhizal species forms essential symbiotic relationships with tree roots, facilitating nutrient exchange and supporting forest ecosystem health.

Cortinarius chevassutii faces severe threats primarily from habitat loss and degradation of its specialized forest ecosystems. As a mycorrhizal fungus dependent on specific host trees, it is particularly vulnerable to deforestation, forest fragmentation, and changes in forest management practices that alter the delicate soil chemistry and microhabitat conditions required for its survival.

Threat summary

Habitat

This species inhabits mature deciduous and mixed forests, particularly those dominated by oak, beech, and other broadleaf trees where it forms mycorrhizal associations. It typically occurs in undisturbed forest soils with rich organic matter and stable moisture conditions.

TERRESTRIAL· major

Other threatened species in Cortinariaceae

EN

Cortinarius sordescentipes

Unknown
Scaly WebcapVU

Scaly Webcap

Cortinarius pholideus

Unknown
Goatcheese WebcapVU

Goatcheese Webcap

Cortinarius camphoratus

Unknown
VU

Mealy Bigfoot Webcap

Cortinarius caerulescens

Unknown

Frequently asked questions

Why is Gemarmerde gordijnzwam classified as Critically Endangered?
Gemarmerde gordijnzwam is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Cortinarius chevassutii faces severe threats primarily from habitat loss and degradation of its specialized forest ecosystems. As a mycorrhizal fungus dependent on specific host trees, it is particularly vulnerable to deforestation, forest fragmentation, and changes in forest management practices that alter the delicate soil chemistry and microhabitat conditions required for its survival.
Where does Gemarmerde gordijnzwam live?
Gemarmerde gordijnzwam 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 Gemarmerde gordijnzwam?
The main threats to Gemarmerde gordijnzwam 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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