Catalogue no.:	V-1114801
Taxon:	Potamogeton berchtoldii Fieber
Label:	Potamogeton pusillus var. vulgaris
Family:	Potamogetonaceae
Collector:	Axel Torssander
Exsiccate:	Tiselius, Potamog. Suec. exs. 102
Date:	1898 07 31
Country:	Sweden
Landskap:	Södermanland
Socken:	Vårdinge
Locality:	S. Åby, i ån