anthology vs florilegium

anthology

noun
  • The study of flowers. 

  • A collection of literary works, such as poems or short stories, especially a collection from various authors. 

  • A work or series containing various stories with no direct relation to one another. 

  • An assortment of things. 

florilegium

noun
  • A collection of flowers. 

  • A patristic anthology. 

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