New and Noteworthy Species of Helicogloea (Atractiellomycetes, Basidiomycota) from Europe

Two new species of Helicogloea, H. aseptata V. Malysheva & Spirin and H. insularis Spirin & K.H. Larss. (Atractiellomycetes, Basidiomycota), are described based on morphological and molecular data from north-European collections. In addition, morphological flexibility and host specificity of H. dryina, H. sebacea and H. subardosiaca are discussed. A key for teleomorphic Helicogloea spp. found in Europe is provided.