| Classification | Marsileaceae: Marsilea |
| Harvard University Herbaria Barcode(s) | 00579738 |
| Collector | F. C. Seymour |
| Collector number | 5312 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Billerica |
| Locality | Billerica, Concord River |
| Date Collected | 1939-08-06 [6 Aug 1939] |
| Habitat | Emersed on muddy shore |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b03bd2c9-1045-4eb7-9018-feba929d1cee |
| Harvard University Herbaria Barcode | 00579738 |
| Herbarium | NEBC |
| Family | Marsileaceae |
| Determination | Marsilea quadrifolia Linnaeus |
| Determination Remarks | [is filed under name] [is Current name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
