| Name | Thelidium quinqueseptatum (Nylander) Arnold |
| Authorship | (Nylander) Arnold |
| Rank | Species |
| Placed in | Thelidium A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:407067 |
| Citation | 1868 Verh. Zool.-Bot. Ges. Wien 18: 709 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Thelidium quinqueseptatum (Nylander) Arnold |
| Identification made in | [no date] (2) |