| 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) |