Parasitic fungi of ornamental plants and herbs of Szczecin

In the years 2000-2001, the occurrence of fungi parasitizing on ornamental plants and herbs cultivated in the Vegetative Hall of the Agricultural University in Szczecin was investigated. The plants represented ca. 200 species. Disease and etiological symptoms were found in 37% of plant species. Most diseased plants came from the family Asteraceae. The plant species most frequently affected was Melisa officinalis. In the laboratory, 35 fungal species were recognized. Most fungi came from the phylum Ascomycota (13 species), and least from the phylum Oomycota (3 species). The phylum Ascomycota was represented only by species of the order Erysiphales. Other relatively frequently found fungi also were members of the phylum Basidiomycota (11 species). Of the fungi recognized, 31 species were earlier frequently recorded in Poland, and three rarely. Erysiphe flexuosa parasitizing Aesculus hippocastanum was not recorded in Poland to date; in Europe this fungus was recognized only in Germany and Switzerland