Fib King vs Fly Agaric

Boletus fibrillosus compared with Amanita muscaria

Taxonomic Classification

Rank	Fib King	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Boletales (Boletales)	Agaricales (Gilled Mushrooms)
Family	Boletaceae	Agaricaceae (Agarics)
Genus	Boletus	Amanita (Amanitas)
Species	Boletus fibrillosus	Amanita muscaria

Evolutionary Relationship

Fib King and Fly Agaric share a common ancestor at the Class level: Agaricomycetes. (Mushrooms)

Conservation Status

Fib King

LC — Least Concern

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Fib King	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

Habitat & Geographic Range

Fib King

Habitat

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

Fly Agaric

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Fly Agaric

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.