A total of forty-three taxa were studied and described. The taxa belong to three orders, thirteen families and twenty two genera. Eighteen genera are new records for the country, as follows: Aphanothece, Aphanocapsa, Merismopedia, Gloeocapsa, Chroococcus, Entophysalis, Stanieria, Myxosarcina, Pleurocapsa, Pseudanabaena, Jaaginema, Geitlerinema, Porphyrosiphon, Spirulina, Leptolyngbya, ... [Show full abstract] Oscillatoria and Homoeothrix. Twelve species were fond in distinctly different habitats from those from which the original type species were collected and described: Aphanocapsa cf. muscicola, Gloeocapsa cf. atrata, G. cf. arenaria, G. cf. punctata, Chroococeus cf. helveticus, C. cf. minor, C. cf. polyedriformis, Myxosarcina cf. concinna, cf. Jaaginema pseudogeminatum, Phormidium cf. priestley, P. cf. puteale and Homoeothrix cf. gracilis. One new combination is proposed [Stanieria minima (Geitl.) Silva et Pienaar].