| Name | Acarospora umbilicata Baglietto | 
| Authorship | Baglietto | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Acarospora A. Massalongo | 
| GUID | urn:lsid:indexfungorum.org:names:375763 | 
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Acarospora umbilicata Baglietto | 
| Identification made in | [no date] (6) |