Brook Stippleback Lichen vs Christmasbush

Dermatocarpon luridum compared with Alchornea cordifolia

Key Differences

• Brook Stippleback Lichen is Critically Endangered while Christmasbush is Least Concern.

Taxonomic Classification

Rank	Brook Stippleback Lichen	Christmasbush
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Eurotiomycetes (Eurotiomycetes)	Magnoliopsida (Dicots)
Order	Verrucariales (Verrucariales)	Malpighiales (Malpighiales)
Family	Verrucariaceae	Euphorbiaceae
Genus	Dermatocarpon	Alchornea
Species	Dermatocarpon luridum	Alchornea cordifolia

Conservation Status

Brook Stippleback Lichen

CR — Critically Endangered

Christmasbush

LC — Least Concern

Physical Characteristics

Attribute	Brook Stippleback Lichen	Christmasbush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Stippleback Lichen

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands 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.

Christmasbush

Habitat

Inhabits tropical and subtropical moist broadleaf forests and flooded grasslands and savannas within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Cameroon and Guinea.

Brook Stippleback Lichen

The Brook Stippleback Lichen (Dermatocarpon luridum) is a species in the genus Dermatocarpon. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Christmasbush

Christmasbush (Bursaria spinosa) is a native Australian shrub or small tree in the family Pittosporaceae, widely distributed across southeastern Australia. The species is found in a variety of habitats including dry sclerophyll woodland, grassland margins, and coastal heath, growing in well-drained soils. It produces dense clusters of small, fragrant white flowers typically in summer or early autumn, which coincide with the Australian Christmas season and give rise to one of its common names. The flowers are rich in nectar and attract a wide diversity of insects including native bees, butterflies, and beetles, making Bursaria spinosa one of the most ecologically significant flowering shrubs in southeastern Australian woodlands for invertebrate communities. The plant is also a critical larval host for several butterfly species, including the rare golden sun moth. Bursaria spinosa is a pioneering species in disturbed landscapes and is used in revegetation and ecological restoration projects. Its dense, thorny branches provide protective nesting habitat for small birds. The species tolerates poor soils and periods of drought once established. It has no significant conservation concerns and is common throughout its range.