]> GH barcode-01880390 United States of America Maryland 1/4 mile below Conowingo dam; 1 1/4 miles west of Rowlandsville. Epifagus virginiana (Linnaeus) W. P. C. Barton (Linnaeus) W. P. C. Barton 2020-12-08 12:35:49 R. R. Tatnall