| Name | Ascophyllum mackayi (Turner) Holmes & Batters |
| Authorship | (Turner) Holmes & Batters |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Ascophyllum Stackhouse |
| Contains | Ascophyllum mackayi f. robertsonii Batters |
| Remarks | Created from Taxon Name Import: Ascophyllum mackayi (Turner) Holmes & Batters |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ascophyllum mackayi (Turner) Holmes & Batters |
| Identification made in | [no date] (2) |