| Name | Rhizocarpon postumum (Nylander) Arnold |
| Authorship | (Nylander) Arnold |
| Rank | Species |
| Placed in | Rhizocarpon Ramond ex de Candolle |
| GUID | urn:lsid:indexfungorum.org:names:404071 |
| Citation | 1870 Flora 53: 478 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Rhizocarpon postumum (Nylander) Arnold |
| Identification made in | [no date] (2), 2001 (1) |
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