Brown Cobblestone Lichen vs Sharp-Scaly Pholiota

Acarospora fuscata compared with Pholiota squarrosoides

Key Differences

• Brown Cobblestone Lichen is Least Concern while Sharp-Scaly Pholiota is Critically Endangered.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Sharp-Scaly Pholiota
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum	Ascomycota (Sac Fungi)	Basidiomycota (Club Fungi)
Class	Lecanoromycetes (Lecanoromycetes)	Agaricomycetes (Mushrooms)
Order	Acarosporales (Acarosporales)	Agaricales (Gilled Mushrooms)
Family	Acarosporaceae	Strophariaceae
Genus	Acarospora	Pholiota
Species	Acarospora fuscata	Pholiota squarrosoides

Evolutionary Relationship

Brown Cobblestone Lichen and Sharp-Scaly Pholiota share a common ancestor at the Kingdom level: Fungi. (Fungi)

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Sharp-Scaly Pholiota

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Sharp-Scaly Pholiota
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Cobblestone Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and United States.

Sharp-Scaly Pholiota

Habitat

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

Range

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

Brown Cobblestone Lichen

The Brown Cobblestone Lichen (Acarospora fuscata) is a species in the genus Acarospora. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇺🇸 United States