Figure 5 from: Xu S-M, Liu B, Rioual P, Yi M-Q, Ma Y-D (2024) A new freshwater species of Pinnularia (Bacillariophyta) from Hunan Province, China. PhytoKeys 237: 179-189. https://doi.org/10.3897/phytokeys.237.116946

Figure 5 Pinnularia hupingensis sp. nov., SEMA one complete valvocopula, note a row of elongate poroids are produced in the pars exterior (four arrows) B middle part details from A, note the pars interior, suture, pars exterior and the elongate poroids (wavy arrows) C one apical detail from A, note the valvocopula is closed at this apex D the other apical detail from A, note the valvocopula is open at this apex (black arrow). Scale bars: 5 μm (A); 1 μm (B–D).