| Name | Acarospora macrocyclos Vainio |
| Authorship | Vainio |
| Rank | Species |
| Placed in | Acarospora A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:375615 |
| Citation | 1903 Résult. Voy. Belgica, Lich. 34 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Acarospora macrocyclos Vainio |
| Identification made in | 2010 (1) |