Sclerotrema

Sclerotrema is a genus of fungi in the family Auriculariaceae. The type and only species, Sclerotrema griseobrunnea, produces effused, corticioid basidiocarps (fruit bodies) on wood with a smooth surface. The species was originally described from Russia and is also known from Canada.

Taxonomy
The genus was created as a result of molecular research, based on cladistic analysis of DNA sequences, which showed that Sclerotrema griseobrunnea, previously referred to the genus Exidiopsis, formed its own unrelated and distinct clade.