vs Chalk Maple

Bacidia rosella compared with Acer leucoderme

Key Differences

• is Critically Endangered while Chalk Maple is Least Concern.

Taxonomic Classification

Rank		Chalk Maple
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Lecanorales (Lecanorales)	Sapindales (Sapindales)
Family	Ramalinaceae	Sapindaceae
Genus	Bacidia	Acer
Species	Bacidia rosella	Acer leucoderme

Conservation Status

CR — Critically Endangered

Chalk Maple

LC — Least Concern

Physical Characteristics

Attribute		Chalk Maple
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Chalk Maple

Habitat

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

Bacidia rosella is a crustose lichen in the family Ramalinaceae, assessed as Critically Endangered (CR). It grows on the smooth bark of ancient trees in old-growth woodland habitats with long ecological continuity. Its critically endangered status reflects extreme rarity and the near-total loss of suitable veteran tree habitats across its range.

Chalk Maple

The Chalk Maple (Acer leucoderme) is a species in the genus Acer. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.