| Classification | Rhodophyta: Ceramiaceae: Callithamnion | 
| Harvard University Herbaria Barcode(s) | 00776135 | 
| Collector | D. E. Hylmö | 
| Country | Sweden | 
| State | Hallands | 
| Geography | Europe: Europe (Region) (Region): Sweden: Hallands | 
| Locality | [data not captured] | 
| Date Collected | 1920-03-16 | 
| Project | Macroalgae TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/44dca2fe-0664-4009-ba75-d749732dece9 | 
| Harvard University Herbaria Barcode | 00776135 | 
| Herbarium | FH | 
| Family | Ceramiaceae | 
| Determination | Callithamnion hookeri (Dillwyn) Gray | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Pressed |