Catalogue no.:	V-1114350
Taxon:	Potamogeton praelongus Wulfen
Label:	Potamogeton praelongus Wulfen
Family:	Potamogetonaceae
Collector:	G. Hellsing
Date:	1890 07 01
Country:	Sweden
Landskap:	Uppland
Socken:	Dannemora
Locality:	Gruvsjön, Dannemora