| Name | Rivularia atra Roth ex Bornet & Flahault |
| Authorship | Roth ex Bornet & Flahault |
| Rank | Species |
| Placed in | Rivularia C. Agardh ex Bornet & Flahault |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Rivularia atra Roth ex Bornet & Flahault |
| Identification made in | [no date] (3) |
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