FIGURE 1. SEM micrographs of stem sections, leaves, and strobilus of Selaginella monticola (Salino 2980, PMA). A. Upper surface of stem. B. Upper surface of median leaves; note stomata along midribs and on inner half of laminae (a), and marginal, elongate, straightwalled and papillate cells (b). C. Close-up of median leaf inner half of lamina, upper surface; note stomata (a), and marginal, elongate, straight-walled and papillate cells (b). D-1. Close-up of portion of outer half of median leaf, upper surface; note papillate, roundish to quadrangular cells, marginal, elongate, straight-walled and papillate cells (b), and marginal cilia. D-2. Upper surface of strobilus; note stomata (a) on inner half of sporophylls laminae, and marginal, elongate, straight-walled and papillate cells (b). E. Lower surface of stem section; note axillary rhizophores. F. Lower surface of lateral leaf. G. Close-up distal portion and apex of lateral leaf, lower surface; note stomata along midrib, elongate, sinuate-walled cells, and elongate, papillate cells. H. Close-up of proximal portion and base of lateral leaf, lower surface; note stomata along midrib, elongate, sinuate-walled cells, and elongate, papillate cells.