Amphora tumida Hustedt (Bacillariophyceae) from southern Brazil
Palabras clave:
diatomácea psâmica, água saloba, taxonomia, ultra-estrutura.Resumen
The ultra-structure details and ecology of Amphora tumida Hustedt are presented. The species was found alive on sand grains in a brackish environment, in pH ranging from 5.5 to 7.4, and the electrical conductivity from 98 to 7,200 μS/cm. It is a rare diatom in the Laranjal Baywhere its frequency varies from 0.21 to 2.93%. Its morphology is in agreement with the type
material. It is the first report of Amphora tumida in South America since it was described for the first time.
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