FIGURES 2–19 in Phylogenetic position of the diatom genus Geissleria Lange-Bertalot & Metzeltin and description of two new species from Siberian mountain lakes

FIGURES 2–19. Geissleria baicalosimilis sp. nov. Figs 2–19: Figs 2–10: Valve view. Fig. 11: Frustule view of girdle. Figs 12–14: Live cells with chloroplast structure, explanation in the text. Figs 15, 16: External valve view, note isolated pore in fig. 16 (arrow). Fig. 17: Internal valve view, note isolated pore structure (arrow). Fig. 18 External view of valve end, note structure of elongated subpolar pores (annulus). Fig. 19. Internal view of valve end, note annulus structure with warty outgrowths (2–14: LM; 15–19: SEM). Scale bar for LM: 10 μm.