Comparison of pollen morphology A Argyreia subrotunda B A. wallichii C A. marlipoensis. Scale bars: 20 μm.

 
 
  Part of: Zhang M-L, He Y, Liu Q-R (2023) A new species of Argyreia (Convolvulaceae) from Yunnan, China. PhytoKeys 225: 199-209. https://doi.org/10.3897/phytokeys.225.100646