Catalogue no.:	V-1115240
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus f. rotundifolius
Family:	Potamogetonaceae
Collector:	Gustaf Tiselius
Exsiccate:	Tiselius, Potamog. Suec. exs. 90
Date:	1887 09 01
Country:	Sweden
Landskap:	Uppland
Socken:	Knivsta
Locality:	in lacu Valloxen