| Name | Phacidium macrosporum P. Karsten |
| Authorship | P. Karsten |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Phacidium |
| Citation | 1869 Fungi Fenniae Exsicc. 9: 844 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phacidium macrosporum P. Karsten |
| Identification made in | [no date] (1) |