Carl Sauer's maps on agricultural origins

Carl Sauer, cultural geographer, author of the brilliant New Spanish Main on the Spanish landnam of America after Columbus, also wrote one the origin and spread of food crops and domesticated animals. Vavilov suggested a number of centres of origin, the so-called hearths. Sauer preferred to talk about Centres of Dispersal. Sauer came later but Vavilov is still the better known name. I have no clue what the current scientific validity is of both theories but it is certain helps that Sauer's Agricultural Origins And Dispersals (1952) is available on Archive.

Great maps, click to enlarge.