Brown Cobblestone Lichen vs

Acarospora fuscata compared with Chrysococcus minutus

Key Differences

Brown Cobblestone Lichen is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Brown Cobblestone Lichen
Kingdom	Fungi (菌界)	Chromista (クロミスタ)
Phylum	Ascomycota (子嚢菌門)	Ochrophyta (オクロ植物)
Class	Lecanoromycetes (チャシブゴケ菌綱)	Chrysophyceae (黄金色藻)
Order	Acarosporales (Acarosporales)	Chromulinales (Chromulinales)
Family	Acarosporaceae	Dinobryaceae
Genus	Acarospora	Chrysococcus
Species	Acarospora fuscata	Chrysococcus minutus

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Cobblestone Lichen
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Chrysococcus minutus is a small loricate chrysophyte alga in the genus Chrysococcus, its epithet minutus (Latin: minute or very small) reflecting its diminutive cell dimensions. Like its congeners, the cell is enclosed within a lorica — a rigid, often silicified or organic housing with an apical pore through which the flagellum protrudes. The lorica shape and dimensions provide taxonomic characters for species differentiation within the genus. C. minutus inhabits freshwater environments, including oligotrophic lakes, bog pools, and slow-moving waters in temperate and subarctic regions. Chrysophytes thrive in cold, acidic, low-nutrient waters and serve as reliable bioindicators of water quality. The small cell size of C. minutus places it within the nanoplankton size class, making it an important prey item for heterotrophic nanoflagellates and small ciliates in the freshwater microbial food web. Some Chrysococcus species supplement photosynthesis with bacterivorous feeding. The species has not been evaluated for conservation status and is listed as Not Evaluated by the IUCN. Loricated chrysophytes like C. minutus leave fossil siliceous cysts (stomatocysts) in lake sediments, which are widely used in paleoecological reconstructions.