| Name | Umbilicaria calvescens Nylander |
| Authorship | Nylander |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Umbilicaria Hoffmann |
| GUID | urn:lsid:indexfungorum.org:names:408083 |
| Citation | 1861 Ann. Sci. Nat., Bot. ser. 4, 15: 375 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Umbilicaria calvescens Nylander |
| Identification made in | 2009 (4) |
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