| Name | Caloplaca microthallina Weddell |
| Authorship | Weddell |
| Rank | Species |
| Placed in | Caloplaca Th. Fries |
| GUID | urn:lsid:indexfungorum.org:names:381666 |
| Citation | 1875 Mém. Soc. Natl. Sci. Nat. Cherbourg 19: 276 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Caloplaca microthallina Weddell |
| Identification made in | [no date] (3), 2016 (1) |