Medusa Brittlestem vs Spring Brittlestem

Psathyrella caput-medusae compared with Psathyrella spadiceogrisea

Key Differences

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

Taxonomic Classification

Rank	Medusa Brittlestem	Spring Brittlestem
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 same	Psathyrellaceae	Psathyrellaceae
Genus same	Psathyrella	Psathyrella
Species	Psathyrella caput-medusae	Psathyrella spadiceogrisea

Evolutionary Relationship

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

Conservation Status

Medusa Brittlestem

EN — Endangered

Spring Brittlestem

LC — Least Concern

Physical Characteristics

Attribute	Medusa Brittlestem	Spring 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.

Spring Brittlestem

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden