| Name | Umbilicaria semitensis Tuckerman |
| Authorship | Tuckerman |
| Rank | Species |
| Placed in | Umbilicaria Hoffmann |
| GUID | urn:lsid:indexfungorum.org:names:408160 |
| Citation | 1872 Gen. Lich. 31 |
| Holdings | 17 Specimens held in the Harvard University Herbaria identified as Umbilicaria semitensis Tuckerman |
| Identification made in | [no date] (6), 1948 (4), 2011 (7) |