Catalogue no.:	V-1113368
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Eugène Köhler
Date:	1893 07
Country:	Sweden
Landskap:	Södermanland
Socken:	Strängnäs
Locality:	Strängnäs, Rullingen