عبداله احمدپور - PhD Student, Department of Plant Protection, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
زینب حیدریان - MSc Student, Department of Plant Protection, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
سعدی کرمی - MSc Student, Department of Plant Protection, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
تاکائو تسوکیبوشی - Researcher, National Institute of Livestock and Grassland Science, Senbonmatsu ۷۶۸, Nasushiobara, Tochigi ۳۲۹-۲۷۹۳, Japan
منک ژنگ - Researcher, College of Plant Protection, Hennan Agriculture University, ۹۵ Wenhua Road, Zhengzhou, Henan, The People’s Republic of China
محمد جوان نیکخواه - Associate Prof., Department of Plant Protection, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran (jnikkhah@ut.ac.ir)

In the present study, six species of Bipolaris viz. B. heveae, B. neergaardii, B. papendrofii, B. zeae, B. oryzae, and B. australiensis and two species of Curvularia viz. C. intermedia and C. heteropogonicola were identified on graminicolous species. Bipolaris heveae on Echinochloa sp., Cynodon dactylon and Arundo sp., B. neergaardii on Oryza sativa, B. papendrofii on Saccharum officinarum and Curvularia intermedia on Echinochloa sp. are newly reported from Iran. Some new host plants are reported for above-mentioned fungal species. Moreover, identification key has been prepared for Bipolaris species with ۳–۴ distoseptate and phylogenetic relationships of some Bipolaris species based on sequencing of rDNA-ITS region is provided.