Catalogue no.:	V-1113407
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Harald Fries & Arne Fries
Date:	1902 07
Country:	Sweden
Landskap:	Uppland
Socken:	Roslags-Kulla
Locality:	Roslagen: Gregersboda