Catalogue no.:	V-1113482
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Sten Grapengiesser
Date:	1922 07 17
Country:	Sweden
Landskap:	Västerbotten
Socken:	Umeå
Locality:	Ängsön (Holmöarna)