On the cover The oldest field maple (Acer campestre L.) in Poland. It grows in the park which surrounds the mansion erected in fifteenth century by the members of Dobrzycki noble family, in Dobrzyca (Great Poland Province). Planted in 1680 measures 637 cm in girth. It is protected by law as the Monument of Nature No. 240.

[Author: Beata Zagórska-Marek]