| Name | Spongomorpha mertensii (Yendo) Setchell & N. L. Gardner |
| Authorship | (Yendo) Setchell & N. L. Gardner |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Spongomorpha Kützing |
| Contains | Spongomorpha mertensii var. tenuis (Tokida) Tokida |
| Remarks | Created from Taxon Name Import: Spongomorpha mertensii (Yendo) Setchell & N. L. Gardner |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Spongomorpha mertensii (Yendo) Setchell & N. L. Gardner |
| Identification made in | [no date] (1) |