Brown Cobblestone Lichen vs Rollrim Milkcap

Acarospora fuscata compared with Lactarius resimus

Key Differences

• Brown Cobblestone Lichen is Least Concern while Rollrim Milkcap is Near Threatened.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Rollrim Milkcap
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum	Ascomycota (Sac Fungi)	Basidiomycota (Club Fungi)
Class	Lecanoromycetes (Lecanoromycetes)	Agaricomycetes (Mushrooms)
Order	Acarosporales (Acarosporales)	Russulales (Russulales)
Family	Acarosporaceae	Russulaceae
Genus	Acarospora	Lactarius
Species	Acarospora fuscata	Lactarius resimus

Evolutionary Relationship

Brown Cobblestone Lichen and Rollrim Milkcap share a common ancestor at the Kingdom level: Fungi. (Fungi)

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Rollrim Milkcap

NT — Near Threatened

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Rollrim Milkcap
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.

Rollrim Milkcap

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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