Blue-Gray Rosette Lichen vs Gray-shanked Douc Langur

Physcia caesia compared with Pygathrix cinerea

Key Differences

• Blue-Gray Rosette Lichen is Least Concern while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Blue-Gray Rosette Lichen	Gray-shanked Douc Langur
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Caliciales (Caliciales)	Primates (Primates)
Family	Physciaceae	Cercopithecidae (Old World Monkeys)
Genus	Physcia	Pygathrix
Species	Physcia caesia	Pygathrix cinerea

Conservation Status

Blue-Gray Rosette Lichen

LC — Least Concern

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	Blue-Gray Rosette Lichen	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue-Gray Rosette Lichen

Habitat

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

Range

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

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blue-Gray Rosette Lichen

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