guttate vs spotted

guttate

adj
  • Spotted. 

  • Shaped like, or resembling drops. 

verb
  • To exude drops of xylem sap on the edges of leaves. 

spotted

adj
  • Discoloured by spots; stained. 

  • Characterized by spots (used especially of animals and plants). 

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