#family_Characeae__Characeae  green algae superficially resembling horsetail ferns: stoneworts
  supertype:  protoctist_family  any of the families of Protoctista
  member of:  order_Charales
  member:  stonewort  any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches; usually encrusted with calcium carbonate deposits
  member:  genus_Chara__Chara  green algae common in freshwater lakes of limestone districts
  member:  genus_Nitella__Nitella  fragile branching stoneworts

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