رقیه سیاه بالایی - Former MSc Student, Department of Biology, Isfahan University, Isfahan, Iran (E-mail: m.siahbala@gmail.com)
سعید افشارزاده - Assistant Prof., Department of Biology, Isfahan University, Isfahan, Iran
شادمان شکروی - Assistant Prof., Faculty of Basic Science, Islamic Azad University, Gorgan Branch, Gorgan, Iran
شکوه نکویی - Former MSc Student, Department of Biology, Isfahan University, Isfahan, Iran

Cyanophyta of some paddy-fields of Golestan province (North of Iran, near the Caspian Sea) have been studied during ۲۰۰۶–۰۷. Phormidium subinerusatum, P. tenue, P. jadinianum, P. purpurascens, P. lucidum, P. fragile, Microcoleus palaodus, M. lacustris are new records for Golestan province and Iran. Results showed that  P. subinerusatum, P. tenue were dominant in all stations. P. fragile, in spring and M. palaodus, M. lacustris, in autumn and winter were not visible in any station. Morphological characteristics of these species are described in detail and information about their ecological distribution is provided.

distribution, Golestan Province, rice-field, Taxonomy