I'm probably the biggest Tolkien fan in Perú, South America. Having said that, I can't help but notice that there is something amiss in his references to potatoes in Middle Earth (cooked by Sam, and apparently eaten by Mim and Turin's band) because potatoes came originally from Perú; they were not found in Europe. Can anybody throw any light on the subject? I am aware that in Tolkien's conception all the lands of the world were originally in one piece; could the answer lie there? Then potatoes woud have had to disappear from ME (Europe) to be later reintroduced after Columbus 'discovered' America. What do you think?