| Name | Nigredo commelinae (Spegazzini) Arthur |
| Authorship | (Spegazzini) Arthur |
| Rank | Species |
| Placed in | Nigredo |
| Citation | 1920 N. Amer. Fl. 7(3): 237 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Nigredo commelinae (Spegazzini) Arthur |
| Identification made in | [no date] (1) |