Phylum Lycopodiophyta

                Family Lycopodiaceae

Lycopodium clubmoss

                                                life cycle (pp. 383-383)

                                                sporophyte

                                                                 microphylls

                                                                 aerial stem

                                                                 protostele

                                                                 leaf traces

                                                                rhizome with adventitious roots

                                                                 strobilus

                                                                                sporophylls

                                                                                sporangia

                                                                                spores

                                                                homosporous

                                                gametophyte

                                                                mycorrhizal fungus (in some; others photosynthetic)

                                                                bisexual

                                                                antheridia

                                                                archegonia

                                                embryo dependent on gametophyte

Family Selaginellaceae

Selaginella

                                                Life cycle (pp. 386-387

  heterosporous

                                                ligule

                                                strobilus

                                                                microsporangium

                                                                microspores

                                                                microsporophyll

                                                                megasporangium

                                                                megaspores

                                                                megasporophyll

                                                endosporic development of gametophytes

                                                unisexual gametophytes

                                                                microgametophyte (male gametophyte)

                                                                megagametophyte (female gametophyte)

                                                embryo

                                                young sporophyte

                                                                shoot

                                                                primary root

                                                                foot

                Family Isoetaceae

Isoetes quillwort