Gardens' Bulletin Singapore 71 (2): 477–498 2019 477 doi: 10.26492/gbs71(2).2019-15 Three new species of Boesenbergia (Zingiberaceae) from Thailand and Lao P.D.R. J.D. Mood1, †J.F. Veldkamp2, T. Mandáková3, L.M. Prince4 & H.J. de Boer5 1 Lyon Arboretum, University of Hawaii, 3860 Manoa Road, Honolulu, Hi 96822, USA.
[email protected] 2 Naturalis Biodiversity Center, Section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands 3 CEITEC – Central European Institute of Technology, and Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic 4 The Field Museum, Department of Botany, 1400 S Lake Shore Dr., Chicago, IL 60605, USA 5 Natural History Museum, University of Oslo, Postboks 1172, Blindern, 0318 Oslo, Norway ABSTRACT. Boesenbergia bella Mood & L.M.Prince, B. phengklaii Mood & Suksathan, and B. putiana Mood & L.M.Prince are described with photographs and a comparative table. The description of Boesenbergia petiolata Sirirugsa is revised to include morphology not previously noted. Molecular phylogenetic analyses of the relevant taxa using plastid and nuclear DNA sequence data are provided. Keywords. Boesenbergia bella, B. petiolata, B. phengklaii, B. putiana, chromosome counts, nrITS, molecular phylogeny, trnK, Vietnam Introduction Beginning in 2010, a taxonomic update of Boesenbergia (Zingiberaceae) was initiated for the Flora of Thailand project. The research model was based on a species by species review of those currently recorded in Thailand. The study of each included the protologue, types and all similar specimens, history, field and ex situ data, results of molecular phylogenetic analyses, and photography. The first to be studied was Boesenbergia longiflora (Wall.) Kuntze which resulted in the description of five new species (Mood et al., 2013).