| Name | Ectocarpus confervoides f. siliculosus (Dillwyn) Kjellman |
| Authorship | (Dillwyn) Kjellman |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Ectocarpus confervoides Le Jolis |
| Remarks | Created from Taxon Name Import: Ectocarpus confervoides f. siliculosus (Dillwyn) Kjellman |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ectocarpus confervoides f. siliculosus (Dillwyn) Kjellman |
| Identification made in | [no date] (3) |