| Name | Cladonia polycarpia G. Merrill |
| Authorship | G. Merrill |
| Rank | Species |
| Placed in | Cladonia P. Browne |
| GUID | urn:lsid:indexfungorum.org:names:382935 |
| Citation | 1909 Bryologist 12: 46 |
| Holdings | 52 Specimens held in the Harvard University Herbaria identified as Cladonia polycarpia G. Merrill |
| Identification made in | [no date] (52) |