Catalogue no.:	V-1112353
Taxon:	Potamogeton obtusifolius Mert. & W.D.J.Koch
Label:	Potamogeton obtusifolius
Family:	Potamogetonaceae
Collector:	K.Fr. Thedenius
Date:	1850
Country:	Sweden
Landskap:	Södermanland
Socken:	Nacka
Locality:	Stockholm i Hammarbysjö
Remarks:	Herb. E. Fries