| Località di raccolta | | Località | Kittilä [Finland, Kemi Lapland (KemL/Lkem)], Kiistala, the river Seurujoki, Grid 27°E:7547:446, UTM MR 2, alt. 260 m, in shallow, rapidly flowing water on gravelly bottom, submerged, very abundant, with Sparganium sp. and Hippuris vulgaris |
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