| Name | Cryptothecia filicina (Ellis & Everhart) R. Lucking & G. Thor |
| Authorship | (Ellis & Everhart) R. Lucking & G. Thor |
| Rank | Species |
| Placed in | Cryptothecia Stirton |
| Citation | 2006 Lichenologist 38(3): 238 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cryptothecia filicina (Ellis & Everhart) R. Lucking & G. Thor |
| Identification made in | 2009 (2) |