Ulnaria shun-biseriata sp. nov., LM A–I nine normal valves showing a size diminution series J–Q eight abnormal valves A illustration of holotype specimen. Scale bar: 10 μm (I).

 
 
  Part of: Zheng Y, Liu B, Rioual P, Long J-Y, Zhou M (2024) Ulnaria shun-biseriata sp. nov. (Bacillariophyta) from the Shun River in Hunan Province, China. PhytoKeys 246: 315-327. https://doi.org/10.3897/phytokeys.246.130942