Brook Floater vs Smooth Map Lichen

Alasmidonta varicosa compared with Rhizocarpon hochstetteri

Taxonomic Classification

Rank	Brook Floater	Smooth Map Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Ascomycota (Sac Fungi)
Class	Bivalvia (Bivalvia)	Lecanoromycetes (Lecanoromycetes)
Order	Unionida (Unionida)	Rhizocarpales (Rhizocarpales)
Family	Unionidae	Rhizocarpaceae
Genus	Alasmidonta	Rhizocarpon
Species	Alasmidonta varicosa	Rhizocarpon hochstetteri

Conservation Status

Brook Floater

VU — Vulnerable

Smooth Map Lichen

VU — Vulnerable

Physical Characteristics

Attribute	Brook Floater	Smooth Map Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

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

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Smooth Map Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.