Seven species of Myxomycetes are reported from Poland for the first time. These are Arcyria virescens, Cribraria costata, C. elegans, C. languescens, C. mirabilis, C. pertenuis and Trichia flavicoma. They have very few localities in Europe and Cribraria pertenuis is known only from two sites worldwide. The species are described and illustrated with microphotographs, including first published micrographs of C. pertenuis. Localities are given and the taxonomy and ecology of each species are discussed.
Abstract. The paper presents a new Polish record of Badhamia versicolor, a nationally rare and red-listed species of Myxomycetes. It was discovered on the edge of the disused sand and gravel pit (formerly, a gravel mine of the Polish State Railway) in the town of Suwałki, north-eastern Poland. Two small clusters of mature fruiting bodies of B. versicolor were noticed on a bark of living poplar (unidentified species of Populus) and on a fallen leaf of the same poplar tree. Photographic documentation of specimens collected from a new locality is provided.
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