mott vs seedling

mott

noun
  • A copse or small grove of trees, especially live oak or elm. 

seedling

noun
  • a tree smaller than a sapling. 

  • one grown in a nursery for transplanting. 

  • A young plant grown from seed. 

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