Black Knot vs Brown Cobblestone Lichen

Apiosporina morbosa compared with Acarospora fuscata

Key Differences

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

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Black Knot

NE — Not Evaluated

Brown Cobblestone Lichen

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Black Knot

Habitat

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

Range

Distributed across Denmark, Norway, and United States.

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.

Black Knot

The Black Knot (Apiosporina morbosa) is a species in the genus Apiosporina. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Its geographic range spans Distributed across Denmark, Norway, and United States.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇺🇸 United States