Brown Cobblestone Lichen vs Chalk Screw-moss

Acarospora fuscata compared with Tortula vahliana

Key Differences

Brown Cobblestone Lichen is Least Concern while Chalk Screw-moss is Vulnerable.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Chalk Screw-moss
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Bryophyta
Class	Lecanoromycetes (Lecanoromycetes)	Bryopsida (Bryopsida)
Order	Acarosporales (Acarosporales)	Pottiales (Pottiales)
Family	Acarosporaceae	Pottiaceae
Genus	Acarospora	Tortula
Species	Acarospora fuscata	Tortula vahliana

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Chalk Screw-moss

VU — Vulnerable

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Chalk Screw-moss
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.

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges 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.

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.