Blackthorn Rust vs Fly Agaric

Tranzschelia pruni-spinosae compared with Amanita muscaria

Key Differences

• Blackthorn Rust is Not Evaluated while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Blackthorn Rust	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class	Pucciniomycetes (Pucciniomycetes)	Agaricomycetes (Mushrooms)
Order	Pucciniales (Pucciniales)	Agaricales (Gilled Mushrooms)
Family	Tranzscheliaceae	Agaricaceae (Agarics)
Genus	Tranzschelia	Amanita (Amanitas)
Species	Tranzschelia pruni-spinosae	Amanita muscaria

Evolutionary Relationship

Blackthorn Rust and Fly Agaric share a common ancestor at the Phylum level: Basidiomycota. (Club Fungi)

Conservation Status

Blackthorn Rust

NE — Not Evaluated

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Blackthorn Rust

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Asia (Taiwan) and Europe (5 countries).

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).

Blackthorn Rust

The Blackthorn Rust (Tranzschelia pruni-spinosae) is a species in the genus Tranzschelia. Found across Asia (Taiwan) and Europe (5 countries).

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 4 countries:

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