#order_Peronosporales__Peronosporales  order of chiefly parasitic lower fungi: Albuginaceae and Peronosporaceae and Pythiaceae
  supertype:  fungus_order  the order of fungi
  member of:  class_Oomycetes
  member:  family_Peronosporaceae__Peronosporaceae  parasitic fungi: downy mildews
     member:  genus_Peronospora__Peronospora  genus of destructive downy mildews
        member:  blue_mold_fungus__Peronospora_tabacina  fungus causing a serious disease in tobacco plants characterized by bluish-gray mildew on undersides of leaves
        member:  onion_mildew__onionmildew__peronosporadestructor  fungus causing a downy mildew on onions
        member:  tobacco_mildew__tobaccomildew__Peronospora_hyoscyami  fungus causing a downy mildew on growing tobacco
     member:  downy_mildew__downymildew__falsemildew  any of various fungi of the family Peronosporaceae parasitic on e.g. grapes and potatoes and melons
  member:  family_Albuginaceae__Albuginaceae  fungi that produce white sori resembling blisters on certain flowering plants
     member:  genus_Albugo__Albugo  type genus of the Albuginaceae; fungi causing white rusts
        member:  white_rust__whiterust  fungus causing a disease characterized by a white powdery mass of conidia
  member:  family_Pythiaceae__Pythiaceae  fungi having sporangia usually borne successively and singly at the tips of branching sporangiophores
     member:  genus_Pythium  destructive root-parasitic fungi
        member:  pythium  any fungus of the genus Pythium
     member:  genus_Phytophthora__Phytophthora  destructive parasitic fungi causing brown rot in plants
        member:  Phytophthora_citrophthora  causes brown rot gummosis in citrus fruits
        member:  Phytophthora_infestans  fungus causing late blight in solanaceous plants especially tomatoes and potatoes

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