Figure 3 from: Tseplik ND, Maltsev YI, Glushchenko AM, Kuznetsova IV, Genkal SI, Gusev ES, Kulikovskiy MS (2021) Achnanthidium gladius sp. nov. (Bacillariophyceae) – a new monoraphid diatom species from Indonesia. PhytoKeys 187: 129-140. https://doi.org/10.3897/phytokeys.187.73913

Figure 3 A–HAchnanthidium gladius Tseplik, Kulikovskiy, Glushchenko & Genkal, sp. nov. SEM. Sample no 04123. A–F raphe valves G, H rapheless valves A–C, G, H external views D–F, H internal views. Scale bars: 2 μm (A, D, G, H), 1 μm (C, F), 0.5 μm (B, E).