| Name | Timonius nigrescens Valeton |
| Authorship | Valeton |
| Rank | Species |
| Placed in | Timonius |
| GUID | urn:lsid:ipni.org:names:767810-1 |
| Citation | 1927 Bot. Jahrb. Syst. 61: 46 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Timonius nigrescens Valeton |
| Identification made in | [no date] (2), 1986 (1) |