| Name | Granulopyrenis nigrescens (Müller Arg.) R. C. Harris |
| Authorship | (Müller Arg.) R. C. Harris |
| Rank | Species |
| Placed in | Granulopyrenis |
| Citation | 1995 More Florida Lichens 98 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Granulopyrenis nigrescens (Müller Arg.) R. C. Harris |
| Identification made in | 2015 (1) |
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