Iconella heidenii (Hust.) Cocquyt & R.Jahn Iconella heidenii (Hust.) Cocquyt & R.Jahn in PhytoKeys 82: 89. 2017is new combination for Surirella heidenii Hust., A.W.F.Schmidt, Atlas Diatom.-Kunde, pl. 355, fig. 2-4