Levantamento florístico das Naviculales (Bacillariophyceae) de águas continentais do estado de São Paulo

Abstract

Floristic survey of order Naviculales (Bacillariophyceae), except for Pinnulariaceae, in the state of São Paulo, southeastern Brazil, based on analysis of 104 sampling units gathered from 59 municipalities round the state. Seventeen genera and the total of 87 taxa were identified, including 64 species and 8 varieties that are not the typical of their respective species. Five populations could not be identified even to genus level due to differences in diagnostic morphological features. Families Naviculaceae (that included 64.1% of total species identified), Sellaphoraceae (45.5%), and Diadesmidaceae (38.7%) are the best represented in terms of species identified. Brachysira serians var. serians, Luticola mutica var. mutica, Navicula cryptocephala var. cryptocephala, and Sellaphora pupula var. pupula are the best represented taxa geographically in the area, occurring in more than 50% of sample uits examined. Twenty-three taxa are the least represented species, since each one was collected from just one locality in the state. Sixty three taxa were new citations for the state.

Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Algas 36: Bacillariophyceae (Cymbellales)

“…Tavares 2001, Morandi 2002, Carneiro 2003, 2007, Rocha 2008, apenas o de Ludwig (1996) focalizou a biodiversidade das Cymbellales. Entretanto, a última autora analisou apenas dois gêneros da ordem, Cymbella C. Agardh e Gomphonema Ehrenberg, dos quais identificou para o Estado 33 espécies e uma variedade que não é a típica de sua respectiva espécie.…”