CONTRIBUTION TO SOIL ALGAE (CYANOPHYCEAE) FROM KARACHI PAKISTAN PART I

Abstract

Abstract An ecological survey of soil algae was carried out during 1990-93. Samples were collecrted from different localities around Karachi. Majority of the soil samples with alkaline pH, containing members of Cyanophyceae, while acedic pH with the Chlorophyceae. Present work deals with the class Cyanophyceae. Out of 44 samples members of the seven genera including fourteen species were isolated in pure culture. They include one species of Anabaina, two species of Calothrix, three species of Lynqbya, three species of Nostoc, three species of Oscillatoria, one species of Phormidium and one of Tolypothrix