dry rot vs porcini

dry rot

noun
  • A fungal infection which affects plants, in particular potatoes. 

  • The crumbly, friable decayed portions of wooden members of buildings, especially at or below grade, usually caused by a fungal infection. 

  • Any progression of decay, corruption, or obsolescence. 

porcini

noun
  • An edible mushroom (Boletus edulis), prized for its flavor. 

How often have the words dry rot and porcini occurred in a corpus of books? (source: Google Ngram Viewer )