| Name | Avrainvillea nigricans Decaisne | 
| Authorship | Decaisne | 
| Rank | Species | 
| Placed in | Avrainvillea Decaisne | 
| Contains | Avrainvillea nigricans f. floridana D.S.Littler & M.M.Littler Avrainvillea nigricans f. fulva M. Howe Avrainvillea nigricans f. parva D.S.Littler & M.M.Littler Avrainvillea nigricans f. spongiosa D.S.Littler & M.M.Littler | 
| GUID | urn:lsid:marinespecies.org:taxname:221177 | 
| Holdings | 24 Specimens held in the Harvard University Herbaria identified as Avrainvillea nigricans Decaisne | 
| Identification made in | [no date] (24) |