genetics vs phytogeography

genetics

noun
  • The genetic makeup of a specific individual or species. 

  • The branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA. 

phytogeography

noun
  • The science that studies the geographical distribution of plants; geobotany 

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