Catalogue no.:	V-1114310
Taxon:	Potamogeton praelongus Wulfen
Label:	Potamogeton elongatus
Family:	Potamogetonaceae
Country:	Sweden
Landskap:	Södermanland
Socken:	Stockholm
Locality:	[in lacu Drefviken [Drevviken] 3/4 mil ab Stockholm]
Remarks:	Herb. Wahlenberg. Data a Cl. Hartman [see V-1114304]