| Name | Opegrapha diffracticola R. C. Harris & Ladd |
| Authorship | R. C. Harris & Ladd |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Opegrapha Acharius |
| Citation | 2007 Opusc. Philolichenum 4: 57-68 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Opegrapha diffracticola R. C. Harris & Ladd |
| Identification made in | [no date] (1) |
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