Catalogue no.:	V-1113420
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Harry Smith
Collector no.:	2154
Date:	1953 06 23
Country:	Sweden
Landskap:	Uppland
Socken:	Estuna
Locality:	Norr Malma, Erken mot Svanbergaviken