Tombergven Closterium
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- Closterium abruptum
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- Closterium abruptum
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- Closterium abruptum
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- Closterium abruptum
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- Cl. acutum var. acutum
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- Closterium aciculare
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- Closterium incurvum
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- Closterium incurvum
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- Closterium incurvum
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- Cl. limneticum var. limneticum
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- Closterium striolatum
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- Closterium striolatum
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- Closterium striolatum
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- Closterium venus