Birch Marble vs

Apotomis betuletana compared with Usnea cornuta

Key Differences

• Birch Marble is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	Birch Marble
Kingdom	Animalia (animal)	Fungi (Fungi)
Phylum	Arthropoda (arthropodes)	Ascomycota (Sac Fungi)
Class	Insecta (insecte)	Lecanoromycetes (Lecanoromycetes)
Order	Lepidoptera (Butterflies & Moths)	Lecanorales (Lecanorales)
Family	Tortricidae	Parmeliaceae
Genus	Apotomis	Usnea
Species	Apotomis betuletana	Usnea cornuta

Conservation Status

Birch Marble

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	Birch Marble
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birch Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Birch Marble

The Birch Marble (Apotomis betuletana) is a species in the genus Apotomis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden