| Name | Cladonia vulcanica f. minor Robbins |
| Authorship | Robbins |
| Rank | Forma |
| Placed in | Cladonia vulcanica H. Zollinger & A. Moritzi |
| GUID | urn:lsid:indexfungorum.org:names:386720 |
| Citation | 1931 Rhodora 33: 154 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Cladonia vulcanica f. minor Robbins |
| Identification made in | [no date] (5) |
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