Catalogue no.:	V-1110239
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton x nitens var. heterophyllus
Family:	Potamogetonaceae
Collector:	I. Baagøe
Date:	1894 08 26
Country:	Denmark
Province:	Sjælland
Locality:	in lacu Ulse
Habitat:	in aqua dulce, fundo limoso-argilloso