| Classification | Ephemeraceae: Ephemerum | 
| Harvard University Herbaria Barcode(s) | 00060663 | 
| Type Status | Possible Type | 
| Collector | E. B. Bartram | 
| Collector number | 507 | 
| Country | Mexico | 
| State | Sinaloa | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sinaloa | 
| Locality | East of Mazatlan, shaded bank of dry wash | 
| Date Collected | 1924-11-29 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a60570de-1183-44bb-8812-dd92e9e25b75 | 
| Harvard University Herbaria Barcode | 00060663 | 
| Herbarium | FH | 
| Family | Ephemeraceae | 
| Type Status | Possible Type | 
| Possible Type of | Ephemerum mexicanum E. B. Bartram | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Ephemerum mexicanum E. B. Bartram) Bryologist 1925. 28: 66. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |