Differences between the Old and New Worlds in domesticated plants,especially in large-seeded cereals, are qualitatively similar to the differences in domesticated mammals, though the difference is not so extreme.  -   Jared Diamond     Quotes
Differences between the Old and New Worlds in domesticated plants,especially in large-seeded cereals, are qualitatively similar to the differences in domesticated mammals, though the difference is not so extreme. Jared Diamond
 Plants