Fig. 2.

Wild and cultivated old trees from Europe: a large old European oak (Quercus robur, up); a large old olive tree (Olea europaea, middle), and a large old fig tree (Ficus carica, down). These photographs, when compared to Fig. 1, also demonstrate the difficulty in defining large old trees depending on interspecies characteristics. Although set apart, old singular trees contain superior genetics and have the potential to help create the forests of the future. Photos taken in Papasidero, Calabria (European oak) and Castel di Sasso, Campania (olive and fig trees), South Italy (photos courtesy of the Roviello family)