| Name | Rhizocarpon colludens (Nylander) Fryday |
| Authorship | (Nylander) Fryday |
| Rank | Species |
| Placed in | Rhizocarpon Ramond ex de Candolle |
| GUID | urn:lsid:indexfungorum.org:names:462939 |
| Citation | 1996 Lichenologist 28(6): 540 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Rhizocarpon colludens (Nylander) Fryday |
| Identification made in | [no date] (3) |
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