Catalogue no.:	V-1114798
Taxon:	Potamogeton berchtoldii Fieber
Label:	Potamogeton pusillus L.
Family:	Potamogetonaceae
Collector:	Erik Asplund
Date:	1923 07 15
Country:	Sweden
Landskap:	Södermanland
Socken:	Nämdö
Locality:	Tärnskär