Brown Cobblestone Lichen vs Onion Downy Mildew

Acarospora fuscata compared with Peronospora destructor

Key Differences

• Brown Cobblestone Lichen is Least Concern while Onion Downy Mildew is Not Evaluated.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Onion Downy Mildew
Kingdom	Fungi (Fungi)	Chromista (Chromista)
Phylum	Ascomycota (Sac Fungi)	Oomycota (Oomycetes)
Class	Lecanoromycetes (Lecanoromycetes)	Peronosporea (Peronosporea)
Order	Acarosporales (Acarosporales)	Peronosporales (Peronosporales)
Family	Acarosporaceae	Peronosporaceae
Genus	Acarospora	Peronospora
Species	Acarospora fuscata	Peronospora destructor

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Onion Downy Mildew

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Onion Downy Mildew
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.

Onion Downy Mildew

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

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:

🇳🇴 Norway 🇺🇸 United States