Beard Lichen vs Brown Cobblestone Lichen

Usnea subgracilis compared with Acarospora fuscata

Key Differences

• Beard Lichen is Not Evaluated while Brown Cobblestone Lichen is Least Concern.

Taxonomic Classification

Rank	Beard Lichen	Brown Cobblestone Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class same	Lecanoromycetes (Lecanoromycetes)	Lecanoromycetes (Lecanoromycetes)
Order	Lecanorales (Lecanorales)	Acarosporales (Acarosporales)
Family	Parmeliaceae	Acarosporaceae
Genus	Usnea	Acarospora
Species	Usnea subgracilis	Acarospora fuscata

Evolutionary Relationship

Beard Lichen and Brown Cobblestone Lichen share a common ancestor at the Class level: Lecanoromycetes. (Lecanoromycetes)

Conservation Status

Beard Lichen

NE — Not Evaluated

Brown Cobblestone Lichen

LC — Least Concern

Physical Characteristics

Attribute	Beard Lichen	Brown Cobblestone Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beard Lichen

Habitat

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

Range

Distributed across Norway and United States.

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.

Beard Lichen

The Beard Lichen (Usnea subgracilis) is a species in the genus Usnea. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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