Medusa Brittlestem vs Rootlet Brittlestem

Psathyrella caput-medusae compared with Psathyrella microrhiza

Key Differences

• Medusa Brittlestem is Endangered while Rootlet Brittlestem is Least Concern.

Taxonomic Classification

Rank	Medusa Brittlestem	Rootlet Brittlestem
Kingdom same	Fungi (균계)	Fungi (균계)
Phylum same	Basidiomycota (담자균류)	Basidiomycota (담자균류)
Class same	Agaricomycetes (주름버섯강)	Agaricomycetes (주름버섯강)
Order same	Agaricales (주름버섯목)	Agaricales (주름버섯목)
Family same	Psathyrellaceae	Psathyrellaceae
Genus same	Psathyrella	Psathyrella
Species	Psathyrella caput-medusae	Psathyrella microrhiza

Evolutionary Relationship

Medusa Brittlestem and Rootlet Brittlestem share a common ancestor at the Genus level: Psathyrella.

Conservation Status

Medusa Brittlestem

EN — Endangered

Rootlet Brittlestem

LC — Least Concern

Physical Characteristics

Attribute	Medusa Brittlestem	Rootlet Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Medusa Brittlestem

Habitat

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

Range

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

Rootlet Brittlestem

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden