You have requested access to download the full text of the source (SourceID: 430556):
Van de Vijver, B.; Williams, D. M.; Schuster, T. M.; Kusber, W.-H.; Cantonati, M.; Wetzel, C. E.; Ector, L. (2022). Analysis of the Fragilaria rumpens complex (Fragilariaceae, Bacillariophyta) with the description of two new species. Fottea. 22(1): 93-121.