1. Department of Forest Molecular Genetics and Biotechnology Forestry and Forest Products Research Institute Forest Research and Management Organization Tsukuba Ibaraki Japan
2. Institute of Agricultural and Life Sciences Academic Assembly Shimane University Matsue Shimane Japan
3. Gifu Academy of Forest Science and Culture Mino Gifu Japan
4. Department of Botany, Graduate School of Science Kyoto University Kyoto Japan
5. Makino Herbarium Tokyo Metropolitan University Hachioji Tokyo Japan