Brown Cobblestone Lichen vs Old-Man’S Beard Lichen

Acarospora fuscata compared with Usnea angulata

Key Differences

• Brown Cobblestone Lichen is Least Concern while Old-Man’S Beard Lichen is Not Evaluated.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Old-Man’S Beard Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class same	Lecanoromycetes (Lecanoromycetes)	Lecanoromycetes (Lecanoromycetes)
Order	Acarosporales (Acarosporales)	Lecanorales (Lecanorales)
Family	Acarosporaceae	Parmeliaceae
Genus	Acarospora	Usnea
Species	Acarospora fuscata	Usnea angulata

Evolutionary Relationship

Brown Cobblestone Lichen and Old-Man’S Beard Lichen share a common ancestor at the Class level: Lecanoromycetes. (Lecanoromycetes)

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Old-Man’S Beard Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Old-Man’S Beard Lichen
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.

Old-Man’S Beard Lichen

Habitat

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

Range

Distributed across Colombia, Norway, and United States.

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 2 countries:

🇳🇴 Norway 🇺🇸 United States