| Option ID | Family Name | Notes | Metadata ID |
| 241 | Menispermaceae | Angiosperms (Flowering plants) | 1,591 |
| 242 | Menyanthaceae | Angiosperms (Flowering plants) | 1,591 |
| 243 | Metteniusaceae | Angiosperms (Flowering plants) | 1,591 |
| 244 | Misodendraceae | Angiosperms (Flowering plants) | 1,591 |
| 245 | Mitrastemonaceae | Angiosperms (Flowering plants) | 1,591 |
| 246 | Molluginaceae | Angiosperms (Flowering plants) | 1,591 |
| 247 | Monimiaceae | Angiosperms (Flowering plants) | 1,591 |
| 248 | Montiaceae | Angiosperms (Flowering plants) | 1,591 |
| 249 | Montiniaceae | Angiosperms (Flowering plants) | 1,591 |
| 250 | Moraceae | Angiosperms (Flowering plants) | 1,591 |
| 251 | Moringaceae | Angiosperms (Flowering plants) | 1,591 |
| 252 | Muntingiaceae | Angiosperms (Flowering plants) | 1,591 |
| 253 | Musaceae | Angiosperms (Flowering plants) | 1,591 |
| 254 | Myodocarpaceae | Angiosperms (Flowering plants) | 1,591 |
| 255 | Myricaceae | Angiosperms (Flowering plants) | 1,591 |
| 256 | Myristicaceae | Angiosperms (Flowering plants) | 1,591 |
| 257 | Myrothamnaceae | Angiosperms (Flowering plants) | 1,591 |
| 258 | Myrtaceae | Angiosperms (Flowering plants) | 1,591 |
| 259 | Nartheciaceae | Angiosperms (Flowering plants) | 1,591 |
| 260 | Nelumbonaceae | Angiosperms (Flowering plants) | 1,591 |