| Classification | Betulaceae: Alnus |
| Barcode(s) | 00033660 |
| Type Status | Holotype |
| Collector | M. L. Fernald & H. H. Bartlett |
| Collector number | 14 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Tewksbury |
| Locality | Round Pond |
| Date Collected | 1906-10-14 |
| Habitat | Boggy margin of [pond] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/05201627-7627-45fa-97b5-3ea6142c5236 |
| Harvard University Herbaria Barcode | 00033660 |
| Herbarium | GH |
| Family | Betulaceae |
| Type Status | Holotype |
| Holotype of | Alnus rugosa f. emersoniana Fernald |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Alnus rugosa f. emersoniana Fernald) Rhodora 1945. 47: 348. |
| Family | Betulaceae |
| Determination | Alnus incana subsp. rugosa (Du Roi) R. T. Clausen |
| Determined by | J. J. Furlow |
| Determination Remarks | [current name] |
| Sex | not determined |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
