| Name | Porella roellii Stephani |
| Authorship | Stephani |
| Rank | Species |
| Placed in | Porella Linnaeus |
| Citation | 1891 Bot. Centralbl. 45: 203 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Porella roellii Stephani |
| Identification made in | [no date] (6) |
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