Cytotaxonomical Studies on Cladophora flexuosa (Griff.) Harv., a Marine sp

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Abstract
In C. flexuosa meiosis occurs preceding the formation of the quadriflagellate zoospores. Biflagellate gametes are formed as a result of mitotic divisions. Thus C. flexuosa goes through a life history of isomorphic alternation of generations similar to others closely related species of Cladophora. Studies of mitosis and meiosis indicate there are 12 pairs of chromosomes. At meiosis 7 bivalents show one chiasmata each; the remaining 5 bivalents have 2 chiasmata apiece. Dimension of the filaments, type of branching, shape and size of reproductive swarmers, dimensions of the resting nuclei and size of chromosomes are all helpful in distinguishing species of Cladophora.

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