Catalogue no.:	V-1114545
Taxon:	Potamogeton praelongus Wulfen
Label:	Potamogeton praelongus Wulfen
Family:	Potamogetonaceae
Collector:	Sven O. Björkman
Collector no.:	0677
Date:	1946 06 23
Country:	Finland
Landskap:	Alandia
Socken:	Jomala
Locality:	Dalkarby träsk
Remarks:	Herb. E. Fries