| 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) | 
