| Species name | NBRC No. |
|---|
| Qipengyuania sp. | NBRC 115774 |
| Quadricrura meridionalis | NBRC 106242T |
| Quadricrura septentrionalis | NBRC 106243T, NBRC 106244T |
| Quadrisphaera granulorum | NBRC 106147T |
| Quadrisphaera oryzae | NBRC 113447T |
| Quadrisphaera setariae | NBRC 113770T |
| Quintaria lignatilis | NBRC 32491, NBRC 32492, NBRC 105273 |
