References
- Kato, N. (2003) Siebold Collection preserved in Makino Herbarium. Shibunkaku-Shuppan Ltd., Kyoto (in Japanese).
- Ohba, H. (ed.) (2000) Von Siebold and Historical Botanical Collections from Japan in Leiden, the Netherlands. University of Tokyo Press, Tokyo (in Japanese).
- Ohba, H. (ed.) (2003) Siebold in the 21st Century. University of Tokyo Press, Tokyo (in Japanese).