Catalogue no.:	V-1114355
Taxon:	Potamogeton praelongus Wulfen
Label:	Potamogeton praelongus Wulfen
Family:	Potamogetonaceae
Collector:	M.M. Floderus
Date:	1889 07
Country:	Sweden
Landskap:	Uppland
Socken:	Sigtuna
Locality:	igtuna, Mälaren