| Rhizocarpon crystalligenum Lynge | HOLOTYPE | O-L-000957 | Click on image for full size (36 MPx)
| Protolog: Lynge,B, Skr. Svalbard Ishavet 47: 19 (1932)
| | Locality: GREENLAND: Østgrønland: Ymerøya: Kap Humboldt, 1929.08.03, Lynge, B.
| Currently accepted name: Rhizocarpon superficiale ssp. boreale Runemark
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