Figure 4 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406

Figure 4 SEM photomicrographs of Nitzschia nandorii sp. nov. external valve view A valve view with two rows of areolae on the raphe canal (black arrow), single and double areolae, distal raphe fissures are strongly hooked and deflect (white arrow) B, C valve view with distal raphe fissures deflected to the proximal mantle D decomposed frustule with visible valvocopula with open pores (white arrow). Scale bars: 5 µm.