Brown Cobblestone Lichen vs

Acarospora fuscata compared with Coleroa chaetomium

Key Differences

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

Taxonomic Classification

Rank	Brown Cobblestone Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class	Lecanoromycetes (Lecanoromycetes)	Dothideomycetes (Dothideomycetes)
Order	Acarosporales (Acarosporales)	Venturiales (Venturiales)
Family	Acarosporaceae	Venturiaceae
Genus	Acarospora	Coleroa
Species	Acarospora fuscata	Coleroa chaetomium

Evolutionary Relationship

Brown Cobblestone Lichen and share a common ancestor at the Phylum level: Ascomycota. (Sac Fungi)

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Cobblestone 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.

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

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.

Coleroa chaetomium is a phytopathogenic ascomycete fungus in the family Phacidiaceae (order Rhytismatales), recognized as a cause of leaf spot diseases on various herbaceous plants and grasses. Members of the genus Coleroa produce characteristic black, setose (bristle-bearing) apothecia on infected plant tissue, serving as the primary identification feature. The fungus overwinters in dead plant material, releasing ascospores in spring to infect new growth. While typically regarded as a minor pathogen or saprophyte on senescent tissue, it can occasionally cause significant spotting and premature leaf drop under favorable conditions of high moisture and moderate temperatures. Coleroa chaetomium has been recorded from a range of host plants across temperate regions of Europe and North America, with some records extending to other continents. Its taxonomy has been subject to revision as molecular techniques clarify relationships within the Rhytismatales. The ecological role of Coleroa species includes contributing to the decomposition of plant litter and nutrient cycling in terrestrial ecosystems, functioning at the interface between parasitism and saprotrophism. More detailed ecological studies of this fungus remain limited compared to economically significant pathogens.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway