| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Pleonosporium saccorhiza | 13174 | Setchell and Gardner | | ITIS | not accepted | synonym of Tiffaniella saccarhiza | Species |
| Spermothamnion snyderiae | 13170 | | | ITIS | not accepted | synonym of Tiffaniella snyderiae | Species |
| Spermothamnion snyderiae attenuata | 13172 | | | ITIS | not accepted | synonym of Tiffaniella phycophilum | Variety |
| Tiffaniella gorgoneum | 183199 | (Montagne) Doty and Menez | | ITIS | accepted | | Species |
| Tiffaniella phycophilum | 13171 | | | ITIS | accepted | | Species |
| Tiffaniella saccarhiza | 13173 | (Setchell and Gardner) Doty | | ITIS | accepted | | Species |
| Tiffaniella snyderiae | 13169 | | | ITIS | accepted | | Species |
