| Name | Rhizocarpon alaxensis J. W. Thomson |
| Authorship | J. W. Thomson |
| Rank | Species |
| Placed in | Rhizocarpon Ramond ex de Candolle |
| Citation | 1967 Nova Hedwigia 14: 471 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhizocarpon alaxensis J. W. Thomson |
| Identification made in | [no date] (1) |
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