Arthrocladiella - a genus of powdery mildew agents new for Serbia and Montenegro

Arthrocladiella Vassilkov, a fungal genus new for Serbia and Montenegro, is described and illustrated as the agent of powdery mildew on plants of the species Lycium halimifolium Mill. (common matrimony vine). In view of the fact that the genus Arthrocladiella is monotypic, taxonomic characteristics of the species Arthrocladiella mougeotii (Lev) Vassilkov in the anamorphic and teleomorphic stages of development are given in the present paper together with symptoms of the disease