Micromycetes associated with Betula in Lithuania [Su beržais (Betula) susiję mikromicetai Lietuvoje]. – Botanica Lithuanica, 13(3): 181–196

The diversity of various microscopic fungal groups (teleomorphs and anamorphic species) has been investigated on Betula in Lithuania. In total 148 species belonging to 111 genera and 11 orders are listed. 25 species are reported as new for the country. Teleomorph and anamorph occurrence, host preference, distribution frequency are shortly discussed.

Keywords: Ascomycota, Basidiomycota, anamorphic fungi, species diversity, checklist, Betula, Lithuania.