Birken-Gürtelfuß vs Violettroter Klumpfuß

Cortinarius bivelus compared with Cortinarius rufo-olivaceus

Key Differences

• Birken-Gürtelfuß is Data Deficient while Violettroter Klumpfuß is Critically Endangered.

Taxonomic Classification

Rank	Birken-Gürtelfuß	Violettroter Klumpfuß
Kingdom same	Fungi (Pilze)	Fungi (Pilze)
Phylum same	Basidiomycota (Ständerpilze)	Basidiomycota (Ständerpilze)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Agaricales (Champignonartige)	Agaricales (Champignonartige)
Family same	Cortinariaceae	Cortinariaceae
Genus same	Cortinarius	Cortinarius
Species	Cortinarius bivelus	Cortinarius rufo-olivaceus

Evolutionary Relationship

Birken-Gürtelfuß and Violettroter Klumpfuß share a common ancestor at the Genus level: Cortinarius.

Conservation Status

Birken-Gürtelfuß

DD — Data Deficient

Violettroter Klumpfuß

CR — Critically Endangered

Physical Characteristics

Attribute	Birken-Gürtelfuß	Violettroter Klumpfuß
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birken-Gürtelfuß

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Violettroter Klumpfuß

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Birken-Gürtelfuß

Cortinarius bivelus is a mycorrhizal agaric fungus in the family Cortinariaceae, assessed as Data Deficient (DD). Like other members of the genus, it forms ectomycorrhizal associations with forest trees and produces a characteristic cobweb-like cortina veil when young. Insufficient data on its distribution and population size prevent a reliable conservation assessment.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden