Ashen Crust vs Fly Agaric

Peniophora lycii compared with Amanita muscaria

Taxonomic Classification

Rank	Ashen Crust	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Russulales (Russulales)	Agaricales (Gilled Mushrooms)
Family	Peniophoraceae	Agaricaceae (Agarics)
Genus	Peniophora	Amanita (Amanitas)
Species	Peniophora lycii	Amanita muscaria

Evolutionary Relationship

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

Conservation Status

Ashen Crust

LC — Least Concern

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Ashen Crust

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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).

Ashen Crust

Ashen crust (Peniophora lycii) is a species in the genus Peniophora. It is listed as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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.

Shared Countries

Both species can be found in 5 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States