Plants of Castile in Peru: what Garcilaso dated, priced and counted the cost of

Libro nono of the Comentarios Reales is a dated inventory of the Old World crops that entered Peru, written by a man who was in Cuzco while it happened: wheat carried by Maria de Escobar and shared out thirty grains at a time, a crown prize of two silver bars for the first wine or oil raised in any Spanish town, the three olive cuttings of 1560 guarded by a hundred enslaved men and thirty dogs, and the weeds that erased a valley's name.