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Jan&paul: Euastrum sp. (Chlorophyceae, Desmidiaceae)
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Jan&paul: Micrasterias americana
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Jan&paul: Closterium Ehrenbergii
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Jan&paul: Closterium Ehrenbergii
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Jan&paul: Micrasterias americana
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Jan&paul: Staurastrum sp. (Chlorophyceae -Desmidiaceae)