Figure 4 from: Krishnan R, Khanduri P, Tandon R (2019) Zeylanidium manasiae, a new species of Podostemaceae based on molecular and morphological data from Kerala, India. PhytoKeys 124: 23-38. https://doi.org/10.3897/phytokeys.124.33453

Figure 4 Scanning electron micrographs A seed with reticulate spermoderm pattern B dyad pollen with micro-echinate ornamentation over the apertural (ap) and non apertural regions (np). Scale bars: 50 μm (A); 5 μm (B).