| Name | Laminaria agardhii f. zostericola Collins | 
| Authorship | Collins | 
| Rank | Forma | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Laminaria agardhii Kjellman | 
| Citation | 1903 Phycoth. Bor.-Amer. Fasc. XXII, no. 1084 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Laminaria agardhii f. zostericola Collins | 
| Identification made in | [no date] (1) | 
