| Name | Marchantia quadrata Scopoli |
| Authorship | Scopoli |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Marchantia |
| Citation | 1772 Fl. Carniol., ed. 2. 355 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Marchantia quadrata Scopoli |
| Identification made in | [no date] (2), 2018 (4), 2019 (2) |