Floristic survey of families Chlorococcaceae and Coccomyxaceae (Chlorophyceae) in the Parque Estadual das Fontes do Ipiranga, city of São Paulo, São Paulo State, southeast Brazil. Eleven genera, 30 species and three varieties and one taxonomic forma that are not typical of their respective species and variety were identified. Tetraëdron is the genus with the largest number of species (eight) in the area, and Tetraëdron minimum var. "apiculato-scrobiculatum" the best represented taxon geographically, occurring in four localities. Ankyra judayi, Apodochlorispolymorpha, Characium acuminatum, C. ensiforme, C. ornithocephalum var. adolescens, C. ornithocephalum var. pringsheimii, C. strictum, C. transvaalense, Chlorococcum acidum, C. minutum, Elakatothrix gelatinosa, Keratococcus mucicola, K. suecicus, Schroederia indica, S. spiralis, Tetraëdron gracile, T. minimum var. minimum, T. planctonicum, T. quadrilobatum, T. triangulare, T. trigonum f. trigonum and T. trigonum f. gracile are the least represented ones, occurring in a single locality each.
Brazil; Chlorococcaceae; Coccomyxaceae
