Proposal of new syntaxonomic classification of Myriophyllo-Nupharetum W. Koch 1926 phytocenoses and their distribution

The author gives a new syntaxonomic classification of the phytocenoses included in the association Myriophyllo-Nupharetum described by W. Koch (1926) without any documentation material. After analysing 1554 phytosociological records from the territory of Poland, in which species considered as characteristic for Myriophyllo-Nupharetum (Nuphar luteum, Nymphaea alba, N. candida and Myriophyllum verticillatum) were the forming species (in this case also the dominating ones), it was considered necessary to classify these phytocenoses to three separate associations: Nuphareto-Nymphaeetum albae, Nymphaeetum candidae and Myriophylletum verticillati. A table representing the association Nuphareto-Nymphaeetum albae, 3 synthetic tables and maps of distribution of the so far recorded sites or groups of sites of the abov