| Name | Cladonia scabriuscula f. subnuda Robbins |
| Authorship | Robbins |
| Rank | Forma |
| Placed in | Cladonia scabriuscula (Delise) Nylander |
| GUID | urn:lsid:indexfungorum.org:names:600166 |
| Citation | 1931 Rhodora 33: 137 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Cladonia scabriuscula f. subnuda Robbins |
| Identification made in | [no date] (6) |