Lepidocarpon, Lepidostrobus, Mazocarpon, Plaeuromeia, Sigillariostrobiis (members of Lycopsida), and Calamocarpon, Calamostachys, Palaeostachys (members of Sphenopsoda). These refer to the fossil genera.
The living members include: Selaginella, Isoetes, Stylites, Marsilea, Pilularia, Regnellidium, Salvinia, Azolla and Platyzoma (9 genera)
Emily approved September 11, 2017