| Name | Polymeridium quinqueseptatum (Nylander) R. C. Harris |
| Authorship | (Nylander) R. C. Harris |
| Rank | Species |
| Placed in | Polymeridium (Müller Arg.) R. C. Harris |
| GUID | urn:lsid:indexfungorum.org:names:113048 |
| Citation | 1980 Bryologist 83(1): 12 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Polymeridium quinqueseptatum (Nylander) R. C. Harris |
| Identification made in | [no date] (4) |