| Name | Polysiphonia sp. |
| Authorship | |
| Rank | Species |
| Placed in | Polysiphonia Greville |
| Holdings | 34 Specimens held in the Harvard University Herbaria identified as Polysiphonia sp. |
| Identification made in | [no date] (34) |
| Name | Polysiphonia sp. |
| Authorship | |
| Rank | Species |
| Placed in | Polysiphonia Greville |
| Holdings | 34 Specimens held in the Harvard University Herbaria identified as Polysiphonia sp. |
| Identification made in | [no date] (34) |