| Classification | Rhodophyta: Rhodomelaceae: Polysiphonia | 
| Harvard University Herbaria Barcode(s) | 00976188 | 
| Collector | [no data available] | 
| Country | France | 
| State | Normandie | 
| Geography | Europe: Europe (Region) (Region): France: Normandie: Manche | 
| Locality | Granville | 
| Project | Macroalgae TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d3531773-bae3-4d93-83ee-b3086d1752c8 | 
| Harvard University Herbaria Barcode | 00976188 | 
| Herbarium | FH | 
| Family | Rhodomelaceae | 
| Determination | Polysiphonia nigrescens (Hudson) Greville ex Harvey | 
| Determination Remarks | [filed under] [current name] | 
| Subcollection | Taylor Herbarium: Algae | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Other |