| Name | Riccardia maxima Schiffner |
| Authorship | Schiffner |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Riccardia |
| Citation | 1898 Akad. Wiss. Wien, Math.-Naturwiss. Kl., Denkschr. 67: 177 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Riccardia maxima Schiffner |
| Identification made in | [no date] (4) |