Black-Eyed Rosette Lichen vs Blackboard Tree

Physcia phaea compared with Alstonia scholaris

Key Differences

Black-Eyed Rosette Lichen is Endangered while Blackboard Tree is Least Concern.

Taxonomic Classification

Rank	Black-Eyed Rosette Lichen	Blackboard Tree
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Caliciales (Caliciales)	Gentianales (Gentianales)
Family	Physciaceae	Apocynaceae
Genus	Physcia	Alstonia
Species	Physcia phaea	Alstonia scholaris

Conservation Status

Black-Eyed Rosette Lichen

EN — Endangered

Blackboard Tree

LC — Least Concern

Physical Characteristics

Attribute	Black-Eyed Rosette Lichen	Blackboard Tree
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Eyed Rosette Lichen

Habitat

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

Range

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

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

Black-Eyed Rosette Lichen

The Black-Eyed Rosette Lichen (Physcia phaea) is a species in the genus Physcia. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Distributed across Norway, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.