Jellied Bolete vs Slippery Jack

Suillus flavidus compared with Suillus luteus

Key Differences

• Jellied Bolete is Critically Endangered while Slippery Jack is Least Concern.

Taxonomic Classification

Rank	Jellied Bolete	Slippery Jack
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Boletales (Boletales)	Boletales (Boletales)
Family same	Suillaceae	Suillaceae
Genus same	Suillus	Suillus
Species	Suillus flavidus	Suillus luteus

Evolutionary Relationship

Jellied Bolete and Slippery Jack share a common ancestor at the Genus level: Suillus.

Conservation Status

Jellied Bolete

CR — Critically Endangered

Slippery Jack

LC — Least Concern

Physical Characteristics

Attribute	Jellied Bolete	Slippery Jack
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Jellied Bolete

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Slippery Jack

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil, Chile).

Shared Countries

Both species can be found in 4 countries:

🇮🇸 Iceland 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States