Chapter 17 Reproductive systems Microspores (male) and megaspores (female) Seedless vascular plants Rhinophyta (extinct) Zosterophyllophyta (extinct) Trimerophytophyta (extinct) Lycopodiaceae (club mosses) Selaginellaceae (Selaginella) Isotaceae (quillworts) Pteridophyta (ferns and horsetails) Ophioglossales, Marrattiales, Filicales, Marsileales, Salviniales (ferns) Psilotales (whisk ferns) Equisitales (horsetails) Phylum Lycopodiophyta Family Selginellaceae Resurrection plants Selaginella Microphylls Sporophylls in stroboli Ligule near base of upper surface of each microphyll and sporophyll Heterosporous Family Isoetaceae |