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Parnell, J.; Strijk, J.; Maknoi, C.; Luu, H. T.; Pooma, R.; Sirimongkol, S.; Tichai, W.; Ritphet, N. New Records Expand the Ranges of Christisonia Siamensis and Christisonia Scortechinii, the Latter Species Being New to Thailand. Thai Forest Bulletin (Botany) 2014, 16-23.