# Stereopsidaceae

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The **Stereopsidales** are an [order](/source/Order_(biology)) of [fungi](/source/Fungi) in the class [Agaricomycetes](/source/Agaricomycetes). There is a single family, **Stereopsidaceae**. It was first described in 2014 to contain the genera *[Stereopsis](/source/Stereopsis_(fungus))*, which was until then [classified](/source/Classification_(biology)) in the order [Polyporales](/source/Polyporales), and *[Clavulicium](/source/Clavulicium)*, which was until then classified in the order [Cantharellales](/source/Cantharellales). [Molecular phylogenetics](/source/Molecular_phylogenetic) analysis showed these two genera to belong together in their own order.[1] This order might belong in the subclass [Phallomycetidae](/source/Phallomycetidae), but this relationship was poorly supported.[1] The Stereopsidales contain corticoid fungi (*Clavulicium* and *Stereopsis*) and stalked, funnel shaped fungi (*Stereopsis*).[1] They are united by features of their spores, which have [refractive](/source/Refractive) contents, and become angular and [amber](/source/Amber)-like as they dry. All known members also possess [basidia](/source/Basidia) with two [sterigmata](/source/Sterigmata), although this is also a feature of fungi in many other orders.[1]

## References

1. Sjökvist E, Pfeil BE, Larsson E, ((Larsson K-H)) (2014). "Stereopsidales – a new order of mushroom-forming fungi". *PLOS ONE*. **9** (8): e106204. [Bibcode:2014PLoSO...995227S](https://ui.adsabs.harvard.edu/abs/2014PLoSO...995227S). [doi:10.1371/journal.pone.0095227](https://doi.org/10.1371/journal.pone.0095227). [PMC 4002437](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4002437). [PMID 24777067](https://pubmed.ncbi.nlm.nih.gov/24777067)

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