Catalogue no.:	V-1113550
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Th. Sørensen
Collector no.:	48
Date:	1933 06 20
Country:	Iceland
Province:	Nordurland eystra
Locality:	Nordligste Del af Myvatn