Scientific Name Collected By Identified By Date Collected Date Identified Family Institution Catalog Number Type Status
collected identified Zannichellia palustris ssp. palustris Herman Svenonius Herman Svenonius 1939 1939-08-18 Potamogetonaceae O 516939
collected identified Zannichellia palustris Herman Svenonius Herman Svenonius 1932 1932-08-01 Potamogetonaceae O 516937