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CCDB → Angiosperms → Orchidaceae → Cypripedium → Cypripedium japonicum Thunb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 20 | IPCN65 | Tanaka 1965a | ||
| Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 20 | IPCN online | KARASAWA, K. & M. Aoyama. 1986. Karyomorphological studies on Cypripedium in Japan and Formosa. Bull. Hiroshima Bot. Gard. 8: 1–22. | |||
| Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 20 | IPCN online | Hoshi, Y., K. Kondo, R. Tanaka & K. KARASAWA. 1995. A comparison of C-banding pattern in nine species of Cypripedium (Orchidaceae). Kromosomo 77: 2636–2645. | |||
| ! | Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 10 | IPCN67-71 | ONO, R. 195Q. Notes on the chromosomes in some species of the Phanerogamous plants. J. Hokkaido Gakugei Univ. 5(1): 33-36. | ||
| ! | Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 20 | IPCN67-71 | TANAKA, R. 1971. Types of resting nuclei in Orchidaceae. Bot. Mag. (Tokyo) 84: 118-122. | ||
| ! | Cypripedium japonicum Thunb. | Cypripedium japonicum Thunb. | 20 | eFlora |