| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Sporobolomyces roseus Kluyver & C. B. Niel 1924 | 0 | 0 | 2 |
| Squamamoeba | 0 | 0 | 1 |
| Stauridium | 0 | 0 | 2 |
| Stephanomonas W. S. Kent | 0 | 0 | 1 |
| Stephanosphaera | 0 | 0 | 2 |
| Stereomyxa | 0 | 0 | 1 |
| Sterigmatomyces halophilus Fell 1966 | 0 | 0 | 1 |
| Stichococcus Nägeli 1849 | 0 | 0 | 2 |
| Stichogloea Chodat 1897 | 0 | 0 | 1 |
| Streptofilum | 0 | 0 | 2 |
| Streptomycetaceae | 0 | 0 | 2 |
| Streptosarcina | 0 | 0 | 3 |
| Streptosporangiales | 0 | 0 | 2 |
| Subulamoeba Bovee 1953 | 0 | 0 | 1 |
| Symbiochloris | 0 | 0 | 1 |
