| Classification | Rhodophyta: Dumontiaceae: Dumontia |
| Harvard University Herbaria Barcode(s) | 00934344 |
| Collector | I. M. Lamb & R. A. Fralick |
| Collector number | A-512b |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Essex County: Nahant |
| Locality | Black Mine (end of Summer Street) |
| Date Collected | 1963-05-23 |
| Habitat | growing on stones and rocks at bottom of large tide pool in middle to lower intertidal zone |
| Frequency | abundant |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c0b66276-b816-435c-8fa4-a11929456e66 |
| Harvard University Herbaria Barcode | 00934344 |
| Herbarium | FH |
| Previous ownership | ex Suffolk University; [ex] Herb. I. Mackenzie Lamb |
| Family | Dumontiaceae |
| Determination | Dumontia incrassata (O. F. Müller) J. V. Lamouroux |
| Determination Remarks | [0] [is label name] |
| Family | Dumontiaceae |
| Determination | Dumontia contorta (S. G. Gmelin) Ruprecht |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Description | includes packet with 35 mm photographic slide |
