| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Acanthocerataceae | 1 | 0 | 0 |
| Acari (mites) | 3 | 2 | 0 |
| Acarospora | 1 | 0 | 0 |
| acarospora sinopica | 0 | 3 | 0 |
| Acarospora sinopica (Wahlenb.) Körb. | 0 | 3 | 0 |
| Acarosporaceae | 1 | 0 | 0 |
| Acarosporales | 1 | 0 | 0 |
| Acavidae | 1 | 6 | 0 |
| Acavus | 1 | 6 | 0 |
| acavus superbus | 0 | 2 | 0 |
| Acavus superbus | 0 | 6 | 0 |
| Achias | 1 | 1 | 0 |
| achias rothschildi | 0 | 4 | 0 |
| Achias rothschildi Austen 1910 | 0 | 1 | 0 |
| Aciculata | 2 | 0 | 0 |
