#rust_fungus__rust  any of various fungi causing rust disease in plants
  supertype:  #fungus  a parasitic plant lacking chlorophyll and leaves and true stems and roots and reproducing by spores
  subtype:  #flax_rust_fungus  #blister_rust  #wheat_rust  #cedar-apple_rust
  member of:  #order_Uredinales
  part:  #aecium  fruiting body of some rust fungi bearing chains of aeciospores
  part:  #aeciospore  spore of a rust fungus formed in an aecium

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