guttate vs patchy

guttate

adj
  • Spotted. 

  • Shaped like, or resembling drops. 

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

patchy

adj
  • Full of, or covered with, patches; abounding in patches. 

  • Not constant or continuous; intermittent or uneven. 

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