Common Tarcrust vs Mealy Parrot / Mealy Amazon

Diatrype stigma compared with Amazona farinosa

Key Differences

Common Tarcrust is Not Evaluated while Mealy Parrot / Mealy Amazon is Near Threatened.

Taxonomic Classification

Rank	Common Tarcrust	Mealy Parrot / Mealy Amazon
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Sordariomycetes (Sordariomycetes)	Aves (Birds)
Order	Xylariales (Xylariales)	Psittaciformes (Parrots)
Family	Diatrypaceae	Psittacidae (True Parrots)
Genus	Diatrype	Amazona
Species	Diatrype stigma	Amazona farinosa

Conservation Status

Common Tarcrust

NE — Not Evaluated

Mealy Parrot / Mealy Amazon

NT — Near Threatened

Physical Characteristics

Attribute	Common Tarcrust	Mealy Parrot / Mealy Amazon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Tarcrust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Mealy Parrot / Mealy Amazon

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Mealy Parrot / Mealy Amazon

One of the largest amazon parrots, mealy amazons have subtle powder-green plumage with bluish-grey head and a distinctive dusty or powdery sheen to the feathers that gives them their name. Found in lowland tropical forest from southern Mexico through Central America and across most of South America to Bolivia and Brazil. They inhabit humid forest and forest edges, traveling in pairs or small flocks. Listed as Least Concern globally though locally impacted by habitat loss and the pet trade.