vs Brown Cobblestone Lichen

Bacidia rosella compared with Acarospora fuscata

Key Differences

• is Critically Endangered while Brown Cobblestone Lichen is Least Concern.

Taxonomic Classification

Rank		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	Ramalinaceae	Acarosporaceae
Genus	Bacidia	Acarospora
Species	Bacidia rosella	Acarospora fuscata

Evolutionary Relationship

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

Conservation Status

CR — Critically Endangered

Brown Cobblestone Lichen

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Portugal, 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

Habitat

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

Range

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

Bacidia rosella is a crustose lichen in the family Ramalinaceae, assessed as Critically Endangered (CR). It grows on the smooth bark of ancient trees in old-growth woodland habitats with long ecological continuity. Its critically endangered status reflects extreme rarity and the near-total loss of suitable veteran tree habitats 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 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇺🇸 United States