Figure 6 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 6 SEM photomicrographs of Nitzschia nandorii sp. nov. internal view A valve view with areolae extended on the proximal mantle (white arrow), there is no wider extension between central fibulae (black arrow) B, C central view B areolae on the proximal mantle are arranged the same as on the raphe canal: single and double areolae (white arrow) C doubled areolae are visible from inside the raphe canal (white arrow), narrow mantle with scalloped edge (black arrow) D, E apices view D areolae on the mantle covered by hymenes (white arrow) E distal fissure creates helictoglossa (white arrow). Scale bars: 5 µm (A); 1 µm (B–E).