''Uncobasidium roseocremeum'' is a species of

crust fungus The corticioid fungi are a group of fungi in the Basidiomycota typically having effused, smooth basidiocarps (fruit bodies) that are formed on the undersides of dead tree trunks or branches. They are sometimes colloquially called crust fungi or pa ...

in the family

Meruliaceae The Meruliaceae are a family of fungi in the order Polyporales. According to a 2008 estimate, the family contains 47 genera and 420 species. , Index Fungorum accepts 645 species in the family. Taxonomy The family was formally circumscribed by E ...

. Found in South America, it was described as a new species in 2012 by mycologists Sergio Gorjón, Alina Greslebin, and Mario Rajchenberg. The holotype was collected in Nahuel Huapi National Park, Argentina, where it was found growing on the bark of a living tree of '' Saxegothaea conspicua''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

''roseocremeum'' refers to the colour of the

fruit body In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the Ovary (plants), ovary after flowering plant, flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their ...

— cream with pinkish tints. Microscopic features of the fungus include its basidia that have two sterigma and lateral protuberances, encrusted

hypha A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or ...

e that resemble

paraphyses Paraphyses are erect sterile filament-like support structures occurring among the reproductive apparatuses of fungi, ferns, bryophytes and some thallophytes. The singular form of the word is paraphysis. In certain fungi, they are part of the fe ...

, and spherical spores.

References

Meruliaceae Fungi described in 2012 Fungi of Argentina Fungus species {{Polyporales-stub