The lichenicolous genus Biatoropsis (Tremellales, Basidiomycota) in Belarus

Abstract

Seventeen specimens of lichenicolous fungi of the genus Biatoropsis were found during the revision of 538 herbarium collections of the lichen genus Usnea in Belarus. Two Biatoropsis species were identified, Biatoropsis rubicundae (on Usnea ceratina) and B. usnearum (on U. florida, U. intermedia and U. subfloridana). Biatoropsis rubicundae is reported here as new to Belarus. Based on the studied material, morphological descriptions, ecological preferences and distribution data for the identified species are provided.