#smut_fungus__smut  any fungus of the order Ustilaginales
  supertype:  #fungus  a parasitic plant lacking chlorophyll and leaves and true stems and roots and reproducing by spores
  member of:  #order_Ustilaginales
  subtype:  #covered_smut__coveredsmut  a smut fungus causing a smut disease of grains in which the spore masses are covered or held together by the grain membranes
  subtype:  #loose_smut__loosesmut  a smut fungus of the genus Ustilago causing a smut disease of grains in which the entire head is transformed into a dusty mass of spores
  subtype:  #cornsmut__corn_smut  a smut fungus attacking Indian corn
     subtype:  #boil_smut__Ustilago_maydis  a common smut attacking Indian corn causing grayish white swellings that rupture to expose a black spore mass
  subtype:  #genus_Sphacelotheca__Sphacelotheca  genus of smut fungus
  subtype:  #head_smut__Sphacelotheca_reiliana  smut fungus attacking heads of corn or sorghum and causing a covered smut
  subtype:  #Tilletia_caries__bunt  fungus that destroys kernels of wheat by replacing them with greasy masses of smelly spores
  subtype:  #Tilletia_foetida__bunt__stinking_smut  similar to Tilletia caries
  subtype:  #onion_smut__onionsmut__Urocystis_cepulae  smut fungus causing blackish blisters on scales and leaves of onions; especially destructive to seedlings
  subtype:  #flag_smut_fungus  a smut fungus causing a smut in cereals and other grasses that chiefly affects leaves and stems and is characterized chains of sori within the plant tissue that later rupture releasing black masses of spores
     subtype:  #wheat_flag_smut__wheatflagsmut__Urocystis_tritici  fungus affecting leaves and stems of wheat

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