| Classification | Rhodophyta: Ceramiaceae: Callithamnion |
| Classification 1 | Rhodophyta: Ceramieae: Ceramium |
| Harvard University Herbaria Barcode(s) | 00789398 |
| 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 | 1888-06-29 |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7df9f511-5bb4-48fc-8d73-169bc5909984 |
| Harvard University Herbaria Barcode | 00789398 |
| Herbarium | FH |
| Family | Ceramiaceae |
| Determination | Callithamnion circinnatum Womersley |
| Determination Remarks | [is label name] |
| Family | Ceramieae |
| Determination | Ceramium circinatum (Kützing) J. Agardh |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
