Catalogue no.:	V-1111152
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton gramineus L.
Family:	Potamogetonaceae
Date:	1842
Country:	Sweden
Landskap:	Uppland
Socken:	Uppsala
Locality:	Upsaliae [Uppsala]
Remarks:	Herb. E. Fries