#family_Marsileaceae__Marsileaceae  clover ferns
  supertype:  fern_family  families of ferns and fern allies
  member:  genus_Marsilea  genus_Pilularia  genus_Regnellidium
  member of:  class_Filicopsida__Filicopsida__Filicinae__class_Filicinae  ferns
     member of:  division_Pteridophyta__Pteridophyta  containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
        member of:  kingdom_Plantae__Plantae__plant_kingdom__plantkingdom  taxonomic kingdom comprising all living or extinct plants

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