Ulnaria xieriverensis sp. nov., ×1000, LM A–H eight valves exhibiting a size diminution series, note the almost parallel but slightly undulate valve margins in larger specimens (A–C) and parallel valve margins in smaller specimens (D–H). A Micrograph of holotype specimen. Scale bar: 10 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