Catalogue no.:	V-1114304
Taxon:	Potamogeton praelongus Wulfen
Label:	Potamogeton elongatus
Family:	Potamogetonaceae
Collector:	Hartman
Date:	1818
Country:	Sweden
Landskap:	Södermanland
Socken:	Stockholm
Locality:	in lacu Drefviken [Drevviken] 3/4 mil ab Stockholm
Remarks:	Herb. Wahlenberg