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C. Laosinwattana
Center for Research on Wild Plants, Utsunomiya University
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R. Sarawut
Center for Research on Wild Plants, Utsunomiya University
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K. Yoneyama
Center for Research on Wild Plants, Utsunomiya University
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Y. Takeuchi
Center for Research on Wild Plants, Utsunomiya University
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M. Ogasawara
Center for Research on Wild Plants, Utsunomiya University