Catalogue no.:	V-1110164
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton gramineus x perfoliatus
Family:	Potamogetonaceae
Collector:	Arne Fries
Date:	1909 08
Country:	Sweden
Landskap:	Uppland
Socken:	Stockholm
Locality:	Klastorp på Kungsholmen