Scientific Name Collected By Identified By Date Collected Date Identified Family Institution Catalog Number Type Status
collected identified Sparganium angustifolium x gramineum Herman Svenonius Herman Svenonius 1922 1922-07-26 Typhaceae O 517706
collected identified Sparganium natans Herman Svenonius Herman Svenonius 1921 1921-08-06 Typhaceae O 518191