HAPALOSIPHON FONTINALIS (C. AGARDH) BORNET, A NEW RECORD OF STIGONEMATALEAN CYANOPHYTA FOR ALGAL FLORA OF IRAN

In this study, a new morphospecies, Hapalosiphon fontinalis (C. Agardh) Bornet (Stigonemataceae, Stigonematales) is reported for Iran. Identification was done in a multidisciplinary way including morphological variations in relation to pH and carbon dioxide concentration fluctuations at limited irradiance (2 μE m-2 s-1). Regarding biological versatility of Cyanophyta, it has been tried to emphasize on the most prominent traits for identification and determination. A new description of the species has been presented regarding morphological characterization in Golestan Province.