Boulder Lichen vs Brook Alder

Porpidia tuberculosa compared with Alnus maritima

Key Differences

• Boulder Lichen is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Boulder Lichen	Brook Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Lecideales (Lecideales)	Fagales (Beeches & Oaks)
Family	Lecideaceae	Betulaceae
Genus	Porpidia	Alnus
Species	Porpidia tuberculosa	Alnus maritima

Conservation Status

Boulder Lichen

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Boulder Lichen	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Boulder Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Boulder Lichen

The Boulder Lichen (Porpidia tuberculosa) is a species in the genus Porpidia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.