Article

A new record of powdery mildew fungi, Sphaerotheca parietariae (Erysiphales, Ascomycota), is reported from the Ukraine for the first time. This species is new for the Mediterranean region and Europe. The fungus was recorded on a new host, Parietaria officinalis L. (Urticaceae), in the Crimean mountains (northeast of the Mediterranean region). The authors conclude that this species may occur in central and southern Europe and in the Mediterranean part of Asia.