| Canoparmelia alabamensis (Hale & McCull.) Elix, 2001 |
| Canoparmelia amabilis Heiman & Elix, 1999 |
| Canoparmelia amazonica (Nyl.) Elix & Hale, 1986 |
| Canoparmelia caroliniana (Nyl.) Elix & Hale, 1986 |
| Canoparmelia crozalsiana (de Lesd.) Elix & Hale, 1986 |
| Canoparmelia cryptochlorophaea (Hale) Elix & Hale, 1986 |
| Canoparmelia salacinifera (Hale) Elix & Hale, 1986 |
| Canoparmelia texana (Tuck.) Elix & Hale, 1986 |
| Cetraria Ach., 1803 |
| Cetraria fendleri (Nyl.) Tuck., 1872 |
| Cetraria oakesiana Tuck., 1841 |
| Cetrariastrum Sipman, 1980 |
| Cetrariastrum neocirrhatum (Hale & M. Wirth) W.L. Culb. & C.F. Culb., 1981 |
| Cetrelia W. L. Culb. & C. F. Culb., 1968 |
| Cetrelia cetrarioides (Delise) W.L. Culb. & C.F. Culb., 1968 |
| Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb., 1968 |
| Cetrelia monachorum (Zahlbr.) W.L. Culb. & C.F. Culb., 1977 |
| Crespoa (D. Hawksw.) Lendemer & B.P. Hodk., 2013 |
| Crespoa crozalsiana (B. de Lesd. ex Harm.) Lendemer & B.P. Hodk., 2013 |
| Evernia Ach., 1809 |