| Classification | Ephemeraceae: Ephemerum |
| Harvard University Herbaria Barcode(s) | 00797134 |
| Collector | C. H. Demetrio |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri |
| Locality | [data not captured] |
| Date Collected | 1891-02-** |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/54a1cf7f-7e2b-4e2e-b09d-cc44cc9a301a |
| Harvard University Herbaria Barcode | 00797134 |
| Herbarium | FH |
| Family | Ephemeraceae |
| Determination | Ephemerum crassinervium (Schwägrichen) Hampe |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
