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Barry M Ralley: Azolla filiculoides 1
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Barry M Ralley: Azolla filiculoides 2
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Barry M Ralley: Azolla filiculoides 3
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Barry M Ralley: Azolla filiculoides 4
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Barry M Ralley: Azolla pinnata 1
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Barry M Ralley: Azolla pinnata 2
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Barry M Ralley: Azolla pinnata 3
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Barry M Ralley: Salvinia molesta 1
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Barry M Ralley: Salvinia molesta 2