Figure 18 from: Valdespino IA (2020) Taxonomic innovations in South American Selaginella (Selaginellaceae, Lycopodiophyta): description of five new species and an additional range extension. PhytoKeys 159: 71-113. https://doi.org/10.3897/phytokeys.159.55330

Figure 18 Selaginella xanthoneura Valdespino. A Microspore, proximal face B detail of microspore, proximal face C microspore, distal face D detail of microspore, distal face E microspore, distal face, equatorial view F detail of capitate projections with echinate microstructure surfaces. A–F taken from the holotype.