Catalogue no.:	V-1111834
Taxon:	Potamogeton gramineus x lucens x perfoliatus
Label:	Potamogeton (lucens x perfoliatus) f. torssanderi
Family:	Potamogetonaceae
Collector:	Amandus Ekström
Date:	1898 08 23
Country:	Sweden
Landskap:	Södermanland
Socken:	Vårdinge
Locality:	sjön Sillen