| order | order of imperfect fungi having no known spore stage |
|---|---|
| order | coextensive with the family Mycoplasmataceae |
| order | an order in the subclass Cnidosporidia |
| order | coextensive with the family Myricaceae |
| order | Myrtaceae |
| order | opossum shrimp |
| order | an order of higher bacteria |
| order | an order of higher bacteria |
| order | an order of higher bacteria |
| order | an order in the subclass Cnidosporidia |
| order | an order of aquatic monocotyledonous herbaceous plants |
| order | an order of insects including: lacewings |