#genus_Sargassum  a genus of protoctista
  supertype:  protoctist_genus  any genus of Protoctista
  member of:  family_Fucaceae
  member:  gulfweed__sargassum__sargasso__Sargassum_bacciferum  brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea

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