| Classification | Rhodophyta: Ceramiaceae: Antithamnieae: Antithamnion |
| Harvard University Herbaria Barcode(s) | 00550619 |
| Collector | I. M. Lamb & M. H. Zimmermann |
| Collector number | A-696 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Barnstable County: Cape Cod |
| Locality | [data not captured] |
| Date Collected | 1964-02-** |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/69b7b143-6f9a-450b-bb54-225531e01915 |
| Harvard University Herbaria Barcode | 00550619 |
| Herbarium | FH |
| Family | Ceramiaceae |
| Determination | Antithamnion americanum (Harvey) Kjellman |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
