Catalogue no.:	V-1113452
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Gottfrid Lidman
Date:	1919 08
Country:	Sweden
Landskap:	Hälsingland
Socken:	Ljusdal
Locality:	Borr, i Ljusne älv