You have requested access to download the full text of the source (SourceID: 391143):
Van de Vijver, B.; Alexson, E. E.; Reavie, E. D.; Straub, F.; Jónsson, G. S.; Ector, L. (2020). Analysis of the type of Synedra acus var. ostenfeldii (Bacillariophyta) and its transfer to the genus Fragilaria. Botany Letters. 1-11.