| Classification | Osmunda: Osmundaceae |
| Harvard University Herbaria Barcode(s) | 00021736 |
| Type Status | Isotype |
| Collector | C. McK. Mack, M. S. Heselton & E. M. Kittredge |
| Country | United States of America |
| State | Vermont |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Vermont |
| Locality | Bridgewaters Corners |
| Date Collected | 1920-08-22 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/899063cf-4ad5-43d2-8020-9a7a5aa79d5b |
| Harvard University Herbaria Barcode | 00021736 |
| Herbarium | GH |
| Family | Osmundaceae |
| Type Status | Isotype |
| Isotype of | Osmunda claytoniana f. mackiana Kittredge |
| Determination Remarks | [is filed under name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
