| Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén, 2013 |
| Tayloriellina S.Y. Kondr., Kärnefelt., A. Thell, Elix & Hur, 2016 |
| Tayloriellina microphyllina (Tuck.) Søchting & Arup, 2021 |
| Teloschistaceae Zahlbr., 1898 |
| Teloschistes Norman, 1853 |
| Teloschistes californicus Sipman, 1993 |
| Teloschistes chrysophthalmus (L.) Norman ex Tuck., 1882 |
| Teloschistes exilis (Michx.) Vain., 1890 |
| Teloschistes flavicans (Sw.) Norman, 1853 |
| Teloschistes villosus (Ach.) Norman, 1853 |
| Wetmoreana Arup, Søchting & Frödén, 2013 |
| Wetmoreana appressa (Wetmore & Kärnefelt) Arup, Søchting & Frödén, 2013 |
| Wetmoreana brouardii (B. de Lesd.) Wilk & Søchting, 2020 |
| Wetmoreana texana (Wetmore & Kärnefelt) Arup, Frödén & Søchting, 2013 |
| Xanthoria (Fr.) Th. Fr., 1860 |
| Xanthoria candelaria (L.) Th. Fr., 1861 |
| Xanthoria concinna J.W. Thomson & T.H. Nash, 1976 |
| Xanthoria elegans (Link) Th. Fr., 1860 |
| Xanthoria polycarpa (Hoffm.) Rieber, 1891 |
| Xanthoria sorediata (Vain.) Poelt, 1954 |