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Influência do nitrato e fosfato no crescimento de Schizomeris leibleinii Kützing (Chaetophorales, Chlorophyta)
Growth curves suggested that S. leibleinii grew rapidly at low concentrations of nitrate and phosphate, but the best development occurred at high nitrate concentrations, indicating nitrogen as the limiting nutrient of growth in culture.
Macroalgas em nascentes e arredores de riachos na região noroeste do estado de São Paulo
The floristic survey resulted in the identification of 13 species, being 54% of taxa belong Cyanophyta and 46% to Chlorophyta, and the aquatic flora differed from the regional records due to presence of organisms of Zygnemataceae family (ChlorophyTA) in reproductive stage.
Ecballocystis pulvinata Bohlin (Hormotilaceae, Chlorophyta): morfologia externa e ocorrência em ambientes lóticos da região Sudeste do Brasil
The characteristic that varied more was the chloroplasts number, suggesting that this attribute is not a reliable taxonomic character, and these habitat conditions are the most appropriate to its development.
Aspectos taxonômicos de Schizomeris Kützing (Chaetophorales, Chlorophyta)
Findings suggest that distinction among the three species is very fragile and cannot be supported by differentiation of the basal system or metrical characteristics, and is considered that Schizomeris is composed by a single species.
Sirocladium robustum, uma nova espécie de Zygnemataceae (Chlorophyta)
S. robustum is described, a new species of this poorly known genus of Zygnemataceae, whose specimens were collected growing on humid soil of a permanent puddle in the northwest region of the State of Sao Paulo, in Brazil.