SEM images of the megaspore of Isoetes weberi (Herter 95840, US), I. quiririensis (Pereira 635, UPCB), I. maxima (Pereira 631, UPCB). A–C Megaspore of I. weberi A Proximal view B Distal view C Equatorial view D–F Megaspore of I. quiririensis D Proximal view E Distal view F Equatorial view G–I Megaspore of I. maxima J Proximal view K Distal view L Equatorial view. All scale bars = 100 µm.

 
 
  Part of: 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