alchorntree vs Common Tarcrust

Alchornea rugosa compared with Diatrype stigma

Key Differences

• alchorntree is Least Concern while Common Tarcrust is Not Evaluated.

Taxonomic Classification

Rank	alchorntree	Common Tarcrust
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Sordariomycetes (Sordariomycetes)
Order	Malpighiales (Malpighiales)	Xylariales (Xylariales)
Family	Euphorbiaceae	Diatrypaceae
Genus	Alchornea	Diatrype
Species	Alchornea rugosa	Diatrype stigma

Conservation Status

alchorntree

LC — Least Concern

Common Tarcrust

NE — Not Evaluated

Physical Characteristics

Attribute	alchorntree	Common Tarcrust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

alchorntree

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Common Tarcrust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

alchorntree

The Alchorntree (Alchornea rugosa) is a species in the genus Alchornea. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Common Tarcrust

<em>Diatrype stigma</em>, the common tarcrust, is a saprotrophic fungus in the family Diatrypaceae, found across Belgium, Denmark, Norway, Portugal, and Sweden, as well as more broadly in Europe and temperate regions globally. It grows as a crust-like, charcoal-black stromata on the dead bark and branches of deciduous hardwoods, particularly hazel, beech, and alder. The fruiting bodies are typically flat to slightly raised, dark gray to black patches that contain numerous embedded perithecia in which ascospores are produced. This fungus plays an important ecological role as a decomposer, breaking down dead woody material and recycling nutrients in forest ecosystems. It is Not Evaluated on the IUCN Red List; given its broad distribution on common substrates, it is generally considered widespread. The species reproduces via wind-dispersed ascospores released from the perithecia. Diet, as a saprotrophic organism, consists of dead organic woody matter. Biological traits such as colony growth rates, spore output, and longevity remain poorly documented in standardized quantitative assessments.