Robert E. Rhoades is dead. He was a pioneer of agricultural anthropology and wrote extensively on conservation of agrobiodiversity, especially how local people do it. His 1991 National Geographic piece The World’s Food Supply at Risk is a classic.
Crops, animals, wild relatives ...
by Luigi Guarino on March 25, 2010
And easy access to the Brainfood Archive.
Eve comes up trumps on those “bonnet gourds”:
There is one from Jamaica in the Economic Botany collection at the Field Museum in Chicago. One can search their database, but I’ll provide a couple of links.
Definitely worth a look.