| Classification | Ophioglossaceae: Botrychium |
| Barcode(s) | 00675790 |
| Type Status | Syntype |
| Collector | A. A. Eaton |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Essex County: Byfield |
| Locality | Byfield, Mass. |
| Date Collected | 1898-07-** [July 31 [1 crossed out] - 1898] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d74fd69d-6659-4e9e-8673-c98357677a27 |
| Harvard University Herbaria Barcode | 00675790 |
| Herbarium | GH |
| Previous ownership | [Ex] Herbarium of Walter Deane. Bequeathed tothe Gray Herbarium. Received August, 1930. From A. A. Eaton Apr. 16, 1899 |
| Family | Ophioglossaceae |
| Type Status | Syntype |
| Syntype of | Botrychium tenebrosum A. A. Eaton |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Botrychium tenebrosum A. A. Eaton) Fern Bull. 1899. 7: 8. |
| Family | Ophioglossaceae |
| Determination | Botrychium simplex E. Hitchcock |
| Determined by | [annotation on sheet] |
| Determination Remarks | [current name] |
| Family | Ophioglossaceae |
| Determination | Botrychium tenebrosum A. A. Eaton |
| Determined by | PZ [P. F. Zika] |
| Date Determined | 2003 |
| Family | Ophioglossaceae |
| Determination | Botrychium tenebrosum A. A. Eaton |
| Determination Remarks | [label name] |
| Annotation Text | Type specimen |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
