Hannaea inaequidentata, normal vegetative valve, internal view, SEM 66 complete valve 67 detail of Fig. 66 showing unilateral swollen middle 68, 69 details of Fig. 66 showing regular sternum and radiating striae near each apex. Scale bars: 10 μm (66), 2 μm (67–69).

 
 
  Part of: Liu B, Williams DM (2020) From chaos to order: the life history of Hannaea inaequidentata (Lagerstedt) Genkal and Kharitonov (Bacillariophyta), from initial cells to vegetative cells. PhytoKeys 162: 81-112. https://doi.org/10.3897/phytokeys.162.56136