| Name | Cladonia firma (Nylander) Nylander |
| Authorship | (Nylander) Nylander |
| Rank | Species |
| Placed in | Cladonia P. Browne |
| GUID | urn:lsid:indexfungorum.org:names:382844 |
| Citation | 1861 Bot. Zeitung (Berlin) 47: 352 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Cladonia firma (Nylander) Nylander |
| Identification made in | [no date] (6) |
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