| Name | Phymatosorus nigrescens (Blume) Pichi Sermolli |
| Authorship | (Blume) Pichi Sermolli |
| Rank | Species |
| Placed in | Phymatosorus |
| Citation | 1973 Webbia 28: 459 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Phymatosorus nigrescens (Blume) Pichi Sermolli |
| Identification made in | [no date] (2) |