Three New Records of Oscillatorian Cyanophyta for the Paddy –Fields Algal Flora of Iran

In this study, three Cyanophyceae species new for Iran are reported. These specimens are Oscillatoria okeni Agardh ex.Gomont, O.earlei Gardner and O.bornetii Fritsch. They were determined to be epidaphic and endaphic which were found at the paddy-field of Golestan province north of Iran and near the Caspian Sea.