444.10.00 SalvinialesBotany: aquatics, floating.
FamiliesMarsileaceae: Marsilea, Pilularia, Regnellidium
Salviniaceae: 2 genera, Azolla, Salvinia
GeneraMarsilea: Water clover; Four-leaf clover.
Azolla: Mosquito fern; Duckweed fern; Fairy moss; Water fern; 7 species; aquatic fern, resembling duckweed or some mosses.