Catalogue no.:	V-1113564
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	M.M. Floderus
Date:	1889
Country:	Sweden
Landskap:	Uppland
Socken:	Sigtuna
Locality:	Munkholmen