Knudsen, K. & Kocourková, J. 2020. Acarosporaceae of Belarus. – Herzogia 33: 394 – 406.

Fourteen species of Acarosporaceae are reported for Belarus in the genera Acarospora, Caeruleum, Myriospora, and Sarcogyne. The species Acarospora admissa and Acarospora intermedia are revised. Acarospora discreta and A. durietzii are treated as synonyms of A. admissa. Lectotypes are designated for A. admissa and Parmelia squamulosa var. discreta. Acarospora admissa is reported as new from Belarus, Germany, Italy, Lithuania, and Poland. Acarospora intermedia is reported as new from Belarus, Czech Republic, Italy, and the Russian Federation. Acarospora sibirica is reported as new to Europe and not recognized as a synonym of A. impressula. Sarcogyne hypophaeoides is reported new for North America (Ontario, Canada) and for Belarus, France, and Italy.