Blackboard Tree vs Smooth Map Lichen

Alstonia scholaris compared with Rhizocarpon hochstetteri

Key Differences

Blackboard Tree is Least Concern while Smooth Map Lichen is Vulnerable.

Taxonomic Classification

Rank	Blackboard Tree	Smooth Map Lichen
Kingdom	Plantae (植物)	Fungi (菌界)
Phylum	Magnoliophyta (被子植物門)	Ascomycota (子嚢菌門)
Class	Magnoliopsida (モクレン綱)	Lecanoromycetes (チャシブゴケ菌綱)
Order	Gentianales (リンドウ目)	Rhizocarpales (Rhizocarpales)
Family	Apocynaceae	Rhizocarpaceae
Genus	Alstonia	Rhizocarpon
Species	Alstonia scholaris	Rhizocarpon hochstetteri

Conservation Status

Blackboard Tree

LC — Least Concern

Smooth Map Lichen

VU — Vulnerable

Physical Characteristics

Attribute	Blackboard Tree	Smooth Map Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

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.

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.