Periphyton diatoms (Bacillariophyta) from Lagoa Tarumã, Ponta Grossa, Paraná, Brazil. 2. Eunotiaceae

Abstract

A taxonomic study of the periphitic diatoms of two field stations in the lagoa Tarumã, Ponta Grossa, was made to contribute to the knowledge of the diatomflorula of the State of Paraná, Brazil. Twenty-six samples were analysed, colleted monthly from October 1993 to October 1994. The analysis allowed identification of 10 specific and infra-specific taxons, belonging to Eunotiaceae and 1 táxon was identified to generic level. Eunotia crista-galli P.T. Cleve and Eunotia luna Ehrenberg var. aequalis Hustedt are new records for Paraná State. Reference to literature cited, morphological description, geographical distribution in the Paraná State and comments on taxonomic and nomenclatural problems are presented for each species. An artificial key to the species, and varietes is also provided. Ilustrations of alI species are presented; light micrographs are also provided for selected species.