The problem is 'Nero' means black in so many languages. Many figs were passed around the old countries a lot of generations ago. If a tree was growing in X town and it was black, it was called "X Nero" , or something to that effect. The problem we have today is many of the figs are the same (or very similar) but because they come from a different area, we know them by many names. As Jon always mentions, it is part of the fun of figs.