![]() ![]() can be differentiated by its broad collum, deep and solid ringleist and presence of short, spatulate and forked-tip spines. These species differ from similar taxa by unique combinations of characters. We present a detailed morphological analysis with light and scanning electron microscopy of two new small Aulacoseira species occurring in lacustrine sediments from small lakes in the provinces of Santa Cruz and Neuquén (Patagonia, Argentina). ![]() Curitiba, Paraná, Brazil.Ĭentric diatoms, freshwater, morphology, SEM, South America, ultrastructure, Algae Abstract 59, 7000-671 Évora, Portugal.ĭivisión Ficología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/nº, 1900 La Plata, Argentina.Īcqua Diagnósticos Ambientais Ltda. Institute of Earth Sciences - ICT, University of Évora, Rua Romão Ramalho n°. Water Laboratory, University of Évora, P.I.T.E. Instituto de Biodiversidad y Biología Experimental Aplicada (CONICET – UBA). Departamento de Biodiversidad y Biología Experimental. Facultad de Ciencias Exactas y Naturales. ![]()
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