Taxonomic study of Anabaina Bory (Nostocophyceae,Cyanophyta) from northern areas of Pakistan

摘要

Specimens of the blue-green alga, Anabaina Bory de Saint-Vincent (=Anabaena Bory) have been collected from various freshwater habitats in the districts of Gujranwala, Jauharabad, Khushab, Lahore, Sheikhupura, Sialkot from the province of the Punjab and from Kalam (Swat) in the province of NWFP at different seasons of the year. They were taxonomically investigated and found to belong to 16 species.