Catalogue no.:	V-1112155
Taxon:	Potamogeton natans L.
Label:	Potamogeton natans var. terrestris
Family:	Potamogetonaceae
Collector:	Hans Luther
Date:	1960 06 20
Country:	Finland
Landskap:	Nylandia
Socken:	Tammisaari
Locality:	Tvärminne, in Lake Tvärminneträsk