Selaginella pubimarginata Valdespino. A Section of lower surface of stem showing lateral and median leaves and axillar leaf B lateral leaf, lower surface C proximal half of lateral leaf, upper surface (same leaf shown in B) D section of proximal acroscopic margin and base of lateral leaf, lower surface (same leaf shown in B); note elongate, papillate idioblasts (a) E distal half of lateral leaf, lower surface (same leaf shown in B); note elongate, papillate idioblasts (a) F mid-section of lateral leaf, lower surface (same leaf shown in B); note elongate, papillate idioblasts (a) and stomata along midrib (b) G axillary leaf (a) and portions of lateral and median leaves, lower surfaces H detail of outer half of median leaf (a) and axillary rhizophores (b), lower surfaces (same leaf shown in G). A–H taken from the holotype.