Ulnaria jishou-biseriata sp. nov., girdle view, SEM A a frustule B–D details from A, showing a 4:3 configuration of girdle bands in a dividing cell. Scale bars: 20 μm (A); 2 μm (B–D).

 
 
  Part of: Liu B (2023) The diatom genus Ulnaria (Bacillariophyta) in China. PhytoKeys 228: 1-118. https://doi.org/10.3897/phytokeys.228.101080