| Name | Fissidens validicostatus Sullivant |
| Authorship | Sullivant |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Fissidens Hedwig |
| Citation | 1879 Linnaea 42: 465 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Fissidens validicostatus Sullivant |
| Identification made in | [no date] (1) |
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