| Name | Monostroma fuscum f. blyttii (Areschoug) Collins |
| Authorship | (Areschoug) Collins |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Monostroma fuscum Wittrock |
| Remarks | Created from Taxon Name Import: Monostroma fuscum f. blyttii (Areschoug) Collins |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Monostroma fuscum f. blyttii (Areschoug) Collins |
| Identification made in | [no date] (1) |