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Acta Nova
versão On-line ISSN 1683-0789
Resumo
BICUDO, Carlos E. de M.; PASCOALOTO, Domitila e SOARES, Climéia C.. Amscottia mira (Grönblad) Grönblad (Desmidiaceae, Zygnematophyceae) recolectada 55 años después de su descripción original. RevActaNova. [online]. 2013, vol.6, n.1-2, pp.64-69. ISSN 1683-0789.
Amscottia mira (Grönblad) Grönblad (Desmidiaceae, Zygnematophyceae) was collected for the second time 55 years after its original description. The present material was collected from the Curicuriari River (sampling site 00º 12.454' S, 66º 47.678' W), a black water tributary on the right bank of the Negro River, Amazonas State, northern Brazil. Examined specimens totally agreed in their overall morphology with that of the original illustration and description of the species. The locality from which specimens were gathered is located at 49 m a.s.l. The river water temperature was 26.9º C, with high acidity (pH 3.7), somewhat low conductivity (24.37 µS cm-1), good amount of dissolved oxygen (6.26 mg L-1) and strong color (256.56 mg Pt-1).
Palavras-chave : Asymmetrical desmid; Brazil; environmental conditions; rediscovery; South America.