| Name | Nigredo hyperici-frondosi (Schweinitz) Arthur |
| Authorship | (Schweinitz) Arthur |
| Rank | Species |
| Placed in | Nigredo |
| Citation | 1920 N. Amer. Fl. 7(3): 261 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Nigredo hyperici-frondosi (Schweinitz) Arthur |
| Identification made in | [no date] (2) |
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