vs Fly Agaric

Coprinopsis stercorea compared with Amanita muscaria

Taxonomic Classification

Rank		Fly Agaric
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	Psathyrellaceae	Agaricaceae (Agarics)
Genus	Coprinopsis	Amanita (Amanitas)
Species	Coprinopsis stercorea	Amanita muscaria

Evolutionary Relationship

and Fly Agaric share a common ancestor at the Order level: Agaricales. (Gilled Mushrooms)

Conservation Status

LC — Least Concern

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil).

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).

Coprinopsis stercorea is a small, inky cap mushroom growing on herbivore dung and manure-enriched soils, as its species name implies. It inhabits pastures, stables, and woodland areas with dung deposits across temperate regions of Europe and North America. This coprophilous saprotrophic fungus decomposes dung organic matter and autodigests its cap as spores mature.

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 6 countries:

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