Catalogue no.:	V-1114788
Taxon:	Potamogeton berchtoldii Fieber
Label:	Potamogeton pusillus L.
Family:	Potamogetonaceae
Collector:	Gunnar Samuelsson
Date:	1899 07
Country:	Sweden
Landskap:	Södermanland
Socken:	Strängnäs
Locality:	Ulfhäll