Blackboard Tree vs

Alstonia scholaris compared with Hapalosiphon luteolus

Key Differences

Blackboard Tree is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree
Kingdom	Plantae (Plants)	Bacteria (Bacteria)
Phylum	Magnoliophyta (Flowering Plants)	Cyanobacteria (Cyanobacteria)
Class	Magnoliopsida (Dicots)	Cyanobacteriia
Order	Gentianales (Gentianales)	Cyanobacteriales
Family	Apocynaceae	Hapalosiphonaceae
Genus	Alstonia	Hapalosiphon
Species	Alstonia scholaris	Hapalosiphon luteolus

Conservation Status

Blackboard Tree

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree
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.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Hapalosiphon luteolus is a filamentous, branching cyanobacterium found in freshwater habitats, damp soil, and moist terrestrial environments including peat bogs and wetland margins. It produces a yellowish pigmentation and forms heterocysts capable of nitrogen fixation. This species contributes to nitrogen cycling in wetland and semi-aquatic ecosystems where it forms part of benthic microbial communities.