Cladophorales And Siphonocladales (Chlorophyta) From Bimbarras Island, Todos Os Santos Bay, Bahia State, Brazil

A morpho-taxonomic study was undertaken of the Cladophorales and Siphonocladales, from bimonthly collections in the intertidal zone of Bimbarras Island, State of Bahia, between September/2008 and July/2011. A total of 12 taxa were identified: Boodlea composita (Harv.) F.Brand, Chaetomorpha aerea (Dillwyn) Kutz., Chaetomorpha brachygona Harv., Chaetomorpha ligustica (Kutz.) Kutz., Chaetomorpha vieillardii (Kutz.) M.J.Wynne, Cladophora brasiliana G.Martens, Cladophora laetevirens (Dillwyn) Kutz., Cladophora socialis Kutz., Cladophoropsis membranacea (Bang ex C.Agardh) Borgesen, Dictyosphaeria versluysii Weber Bosse, Rhizoclonium africanum Kutz., and Rhizoclonium riparium (Roth) Harv. The geographic distribution of Cladophora socialis is extended to the South Atlantic, and Chaetomorpha ligustica is an addition to the marine flora of Bahia. Descriptions, illustrations, and comparisons to related taxa are presented.