#order_Marchantiales__Marchantiales  liverworts with gametophyte differentiated internally
  supertype:  #plant_order__plantorder  the order of plants
  member of:  #class_Hepaticopsida
  member:  #family_Marchantiaceae__Marchantiaceae  liverworts with prostrate and usually dichotomously branched thalli
     member:  #genus_Marchantia__Marchantia  type genus of Marchantiaceae; liverworts that reproduce asexually by gemmae and have stalked antheridiophores
        member:  #Marchantia_polymorpha__hepatica  a common liverwort

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