Ulnaria jishou-biseriata sp. nov., ×400, LM A A cell in girdle view, note two long valve-appressed chloroplasts per cell B a dividing cell in girdle view, note the chloroplasts are distributed along the pervalvar axis C, D two cells in valve view, note the long plate of chloroplast. Scale bar: 20 μm.

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