Bitter Tooth vs Brown Cobblestone Lichen

Hydnellum scabrosum compared with Acarospora fuscata

Key Differences

• Bitter Tooth is Near Threatened while Brown Cobblestone Lichen is Least Concern.

Taxonomic Classification

Rank	Bitter Tooth	Brown Cobblestone Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum	Basidiomycota (Club Fungi)	Ascomycota (Sac Fungi)
Class	Agaricomycetes (Mushrooms)	Lecanoromycetes (Lecanoromycetes)
Order	Thelephorales (Thelephorales)	Acarosporales (Acarosporales)
Family	Bankeraceae	Acarosporaceae
Genus	Hydnellum	Acarospora
Species	Hydnellum scabrosum	Acarospora fuscata

Evolutionary Relationship

Bitter Tooth and Brown Cobblestone Lichen share a common ancestor at the Kingdom level: Fungi. (Fungi)

Conservation Status

Bitter Tooth

NT — Near Threatened

Brown Cobblestone Lichen

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Bitter Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

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

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.

Bitter Tooth

The Bitter Tooth (Hydnellum scabrosum) is a species in the genus Hydnellum. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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:

🇩🇰 Denmark 🇳🇴 Norway