Achnanthes koghisense f. angustifasciata G.Moser, Lange-Bert. & Metzeltin Achnanthes koghisense f. angustifasciata G.Moser, Lange-Bert. & Metzeltinis basionym for Achnanthidium koghisense f. angustifasciatum (G.Moser, Lange-Bert. & Metzeltin) Lange-Bert. in Iconogr. Diatomol. 6: 273. 199911. (Basionym:) fig. 19: 7-11