| Classification | Chromista: Phaeophyceae: Ectocarpaceae: Ectocarpus | 
| Harvard University Herbaria Barcode(s) | 00934523 | 
| Collector | I. M. Lamb & M. H. Zimmermann | 
| Collector number | A-702 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Barnstable County: Falmouth | 
| Locality | Penzance Point near Woods Hole | 
| Date Collected | 1964-02-15 | 
| Habitat | on dead Zostera leaves and on other algae (Scytosiphon, etc.) on sandy bottom at depth of 3 m, common | 
| Project | Macroalgae TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/485274a0-c5e8-4f85-86af-18d8475f7f33 | 
| Harvard University Herbaria Barcode | 00934523 | 
| Herbarium | FH | 
| Previous ownership | ex Suffolk University; [ex] Herb. I. Mackenzie Lamb | 
| Family | Ectocarpaceae | 
| Determination | Ectocarpus siliculosus (Dillwyn) Lyngbye | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |