Pygmy Brittlestem vs Spotted Brittlestem

Psathyrella pygmaea compared with Psathyrella maculata

Key Differences

• Pygmy Brittlestem is Least Concern while Spotted Brittlestem is Vulnerable.

Taxonomic Classification

Rank	Pygmy Brittlestem	Spotted 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 pygmaea	Psathyrella maculata

Evolutionary Relationship

Pygmy Brittlestem and Spotted Brittlestem share a common ancestor at the Genus level: Psathyrella.

Conservation Status

Pygmy Brittlestem

LC — Least Concern

Spotted Brittlestem

VU — Vulnerable

Physical Characteristics

Attribute	Pygmy Brittlestem	Spotted Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pygmy Brittlestem

Habitat

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

Range

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

Spotted Brittlestem

Habitat

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

Range

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

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden