vs Olive Wax Cap

Hygrophorus cossus compared with Hygrophorus olivaceoalbus

Key Differences

• is Critically Endangered while Olive Wax Cap is Least Concern.

Taxonomic Classification

Rank		Olive Wax Cap
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Agaricales (Gilled Mushrooms)	Agaricales (Gilled Mushrooms)
Family same	Hygrophoraceae	Hygrophoraceae
Genus same	Hygrophorus	Hygrophorus
Species	Hygrophorus cossus	Hygrophorus olivaceoalbus

Evolutionary Relationship

and Olive Wax Cap share a common ancestor at the Genus level: Hygrophorus.

Conservation Status

CR — Critically Endangered

Olive Wax Cap

LC — Least Concern

Physical Characteristics

Attribute		Olive Wax Cap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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

Olive Wax Cap

Habitat

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

Range

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

Hygrophorus cossus is a waxcap fungus in the family Hygrophoraceae, assessed as Critically Endangered (CR). It grows in old-growth forest habitats, particularly in association with ancient trees, and is named for its distinctive soapy or waxy odour. Its critically endangered status reflects extreme rarity and the near-total loss of suitable old-growth forest habitat.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden