Figure 3 from: Pereira JBS, Stützel T, Schulz C (2017) Isoetes nana, a new species from the coastal mountain of Southeastern Brazil. PhytoKeys 89: 91-105. https://doi.org/10.3897/phytokeys.89.20171

Figure 3 - SEM images of the megaspore of Isoetes ulei (Ule 3533, HBG), I. martii (Pereira 720, UPCB) and I. × goebelii (Pereira 718, UPCB). A–C Megaspore of I. ulei A Proximal view B Distal view C Equatorial view D–F Megaspore of I. martii D Proximal view E Distal view F Equatorial view G–I Megaspore of I. × goebelii G Proximal view H Distal view I Equatorial view. All scale bars = 100 µm.