| Tretospeira ugandensis (Hansf.) Piroz., 1972 |
| Trichoconis Clem., 1909 |
| Trichoconis caudata (Appel & Strunk) Clem., 1909 |
| Trichoconis echinophila (C. Massal.) de Hoog & Oorschot, 1985 |
| Trichothecium Link, 1809 |
| Trichothecium campaniforme Matsush., 1980 |
| Trichothecium microvermisporum R.F. Castañeda, 1987 |
| Trichothecium roseum (Pers.) Link, 1809 |
| Trigonopsis Schachner, 1929 |
| Trigonopsis variabilis Schachner, 1929 |
| Trimmatostroma Corda, 1837 |
| Trimmatostroma betulinum (Corda) S. Hughes, 1953 |
| Trimmatostroma cordae N. D. Sharma & S. R. Singh, 1976 |
| Trimmatostroma scutellare (Berk. & Broome) M. B. Ellis, 1976 |
| Triramulispora Matsush., 1975 |
| Triramulispora gracilis Matsush., 1975 |
| Trivettea Bertsch, 2014 |
| Trivettea papalotla (Bertsch, Valdés & Gosliner, 2009) |
| Uberispora Piroz. & Hodges, 1973 |
| Uberispora simplex (Ichinoe) Piroz. & Hodges, 1973 |