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CCDB → Angiosperms → Hypericaceae → Hypericum → Hypericum japonicum Thunb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 16 | Dawson New Zealand | ||||
| Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 16 | IPCN online | de Lange, P. J., B. G. Murray & P. M. Datson. 2004. Contributions to a chromosome atlas of the New Zealand flora---38. Counts for 50 families. New Zealand J. Bot. 42: 873–904. | |||
| ! | Hypericum chinense Osbeck | Hypericum japonicum Thunb. | 42 | Kumar, 1987 | Sareen, T.S., Kant, S. & Pratap, R. 1974 | ||
| Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 16 | Kumar, 1987 | Hair, J.B. & Beuzenberg, E.J. 1959 | |||
| ! | Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 16 | eFlora | |||
| Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 16 | Fedorov, 1974 | Hair, Beuzenberg 1959 | |||
| Hypericum japonicum Thunb. | Hypericum japonicum Thunb. | 8 | 8 | Cave1959 | Hair & Beuz. 1959 |