| Classification | Rhodophyta: Ceramiaceae: Antithamnieae: Antithamnion |
| Classification 1 | Rhodophyta: Ceramiaceae: Callithamnion |
| Harvard University Herbaria Barcode(s) | 00550656 |
| Collector | J. Macoun |
| Country | Canada |
| State | Prince Edward Island |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Prince Edward Island |
| Locality | Brackley Point |
| Date Collected | 1888-08-01 |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/186269f4-28fc-4524-a9a0-a5ec4a90f0f8 |
| Harvard University Herbaria Barcode | 00550656 |
| Herbarium | FH |
| Family | Ceramiaceae |
| Determination | Antithamnion boreale (Gobi) Kjellman |
| Determination Remarks | [filed under] [current name] |
| Family | Ceramiaceae |
| Determination | Callithamnion americanum Harvey |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
