I want to know how big the Italian populace think the Pope's balls are! I bet they are some big figs!
Fetifero looks like a "double flowered" fig. Here is the Google translation of it's description:
Fetifero fig is a fruit that combines the qualities of a good fig, one of the most curious phenomena of mulismo. [...] The Fiorone del Fico is a bone of Boron largest fruit of black fig, and more than the petiole Datto: it is oblong, Bell, terminated by a long tail and thin, covered with a blackish skin, ribbed longitudinally by an amount of expense recognized, and containing within itself a fleshy body, the same kind of fig, spuntante out of the crown, and that seems a fig about to come out the other. [...]
I think spuntante means "appearing" but I'm not sure, no idea about mulismo.