Van de Vijver, B., Wetzel, C.E., Ector, L. and Guiry, M.D. (2021) Observations and typification of Fragilaria aequalis Heiberg, the correct name for Fragilaria tenuistriata Østrup (Fragilariaceae, Bacillariophyta) Notulae Algarum 185: (16 March 2021)