| Name | Preissia quadrata (Scopoli) Nees |
| Authorship | (Scopoli) Nees |
| Rank | Species |
| Placed in | Preissia |
| Citation | 1838 Naturgesch. Eur. Leberm. 4: 135 |
| Holdings | 111 Specimens held in the Harvard University Herbaria identified as Preissia quadrata (Scopoli) Nees |
| Identification made in | [no date] (109), 1906 (2) |
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