| Name | Cetraria arenaria Kärnefelt |
| Authorship | Kärnefelt |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Cetraria Acharius |
| GUID | urn:lsid:indexfungorum.org:names:341699 |
| Citation | 1977 Bot. Not. 130(2): 125 |
| Holdings | 246 Specimens held in the Harvard University Herbaria identified as Cetraria arenaria Kärnefelt |
| Identification made in | [no date] (242), 1976 (1), 1978 (2), 2008 (1) |