| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Allocetraria | 0 | 0 | 1 |
| Allophoron | 0 | 0 | 1 |
| Alyxoria | 0 | 0 | 1 |
| Amandinea | 0 | 0 | 1 |
| Amandinea adjuncta | 0 | 0 | 1 |
| Amandinea deminuta | 0 | 0 | 1 |
| Amauroderma | 0 | 0 | 1 |
| Amaurohydnum | 0 | 0 | 2 |
| Amauromyces | 0 | 0 | 1 |
| Amazonomyces | 0 | 0 | 1 |
| Amazonotrema | 0 | 0 | 1 |
| Ameliella | 0 | 0 | 1 |
| Amethicium | 0 | 0 | 1 |
| Amphorothecium | 0 | 0 | 1 |
| Ampliotrema | 0 | 0 | 1 |
