#genus_Psilotum__Psilotum  type genus of the Psilotaceae
  supertype:  #fern_genus  genera of ferns and fern allies
  member of:  #family_Psilotaceae
  member:  #whisk_fern__whiskfern  chiefly tropical clump-forming plants of skeletal appearance resembling whisk brooms; lacking roots

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