vs

Ciboria americana compared with Ciboria betulae

Key Differences

• is Not Evaluated while is Least Concern.

Taxonomic Classification

Rank
Kingdom same	Fungi (菌界)	Fungi (菌界)
Phylum same	Ascomycota (子嚢菌門)	Ascomycota (子嚢菌門)
Class same	Leotiomycetes (Leotiomycetes)	Leotiomycetes (Leotiomycetes)
Order same	Helotiales (Helotiales)	Helotiales (Helotiales)
Family same	Sclerotiniaceae	Sclerotiniaceae
Genus same	Ciboria	Ciboria
Species	Ciboria americana	Ciboria betulae

Evolutionary Relationship

and share a common ancestor at the Genus level: Ciboria.

Conservation Status

NE — Not Evaluated

LC — Least Concern

Physical Characteristics

Attribute
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Ciboria americanaは温帯北米の森林で腐敗する植物基質（花被、どんぐり、球果）に生育する小型の褐色カップ状子嚢菌類だ。カシ、ハンノキおよび関連樹木の結実材料が蓄積する林床に生息する。この腐生子嚢菌は硬く持続性のある植物生殖器官を分解する。

Ciboria betulae is a small discomycete fungus in the family Sclerotiniaceae, associated with birch (Betula) trees across temperate Europe and northern Asia. The species fruits on fallen birch catkins, seeds, or occasionally on decaying birch wood in moist woodland habitats and riparian zones. Its fruiting bodies are typical of the genus: small, stalked cup fungi with a pale to medium brown, concave disc surface. Ciboria betulae is saprotrophic, breaking down plant debris and contributing to nutrient cycling in birch woodland ecosystems. The species name clearly references its host association with Betula. It is classified as Least Concern, reflecting a distribution that is wide, though perhaps locally patchy, across birch-dominated forests and woodland edges. Birch catkins provide a specific substrate window in late spring and early summer after they fall, meaning the fruiting season of this species is typically brief and easily missed. Microscopic features including ascospore dimensions and shape, paraphysis morphology, and excipular tissue help differentiate Ciboria betulae from closely related species on other substrates. The genus Ciboria encompasses multiple species each associated with particular plant substrates, representing a degree of substrate specialization unusual among saprotrophic cup fungi. Records are scattered but consistent across the temperate birch belt of Eurasia.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden