biostudies-literatureMikhailyuk TAustrian Science Fund FWF165-179https://www.ebi.ac.uk/biostudies/studies/S-EPMC6733703biostudies-literatureUnknown400(3)Representatives of the Gomontiellaceae (Oscillatoriales) are rare and hence unstudied cyanobacteria with unusual morphology, distributed in terrestrial and aquatic habitats all over the world. Investigation of the group based on an integrative approach is only beginning, and to understand the actual biodiversity and ecology, a greater number of cultivated strains is necessary. However, some ecological traits of these cyanobacteria (e.g. low population densities, the absence of conspicuous growth in nature) led to methodological difficulties during isolation in culture. One species in the family Gomontiellaceae, <i>Crinalium magnum</i> Fritsch et John, is characterized by prominent wide and flattened trichomes, and represented by the non-authentic strain SAG 34.87. Detailed previous investiPhytotaxaNew record of the rare genus <i>Crinalium</i> Crow (Oscillatoriales, Cyanobacteria) from sand dunes of the Baltic Sea, Germany: epitypification and emendation of <i>Crinalium magnum</i> Fritsch et John based on an integrative approach.PMC6733703I 1951I 1951-B16Glaser KSamolov EVinogradova OHolzinger AMikhailyuk TKarsten UfalseNew record of the rare genus <i>Crinalium</i> Crow (Oscillatoriales, Cyanobacteria) from sand dunes of the Baltic Sea, Germany: epitypification and emendation of <i>Crinalium magnum</i> Fritsch et John based on an integrative approach.Representatives of the Gomontiellaceae (Oscillatoriales) are rare and hence unstudied cyanobacteria with unusual morphology, distributed in terrestrial and aquatic habitats all over the world. Investigation of the group based on an integrative approach is only beginning, and to understand the actual biodiversity and ecology, a greater number of cultivated strains is necessary. However, some ecological traits of these cyanobacteria (e.g. low population densities, the absence of conspicuous growth in nature) led to methodological difficulties during isolation in culture. One species in the family Gomontiellaceae, <i>Crinalium magnum</i> Fritsch et John, is characterized by prominent wide and flattened trichomes, and represented by the non-authentic strain SAG 34.87. Detailed previous investi2019-01-01T00:00:00Z2019 Apr2025-04-05T09:36:14.843Z2019-09-13T07:01:24ZS-EPMC67337033150164210.11646/phytotaxa.400.3.4