Mycaureola is a genus of fungi in the family Physalacriaceae of mushrooms.
Circumscribed in 1922 by French mycologists René Maire and Émile Chemin, the genus is monotypic, containing the single species Mycaureola dilseae.
[1] The fungus is a parasite of the red algal species Dilsea carnosa, on which it causes circular necrotic lesions.
[2] Mycaureola indica was described in a 1957 publication,[3] but the taxon was later transferred to the genus Polystigma as P. indicum.
[4] Molecular phylogenetics placed Mycaureola in the Physalacriaceae, occupying a subclade with species from the genera Rhizomarasmius, Gloiocephala, Xerula, and Oudemansiella.