Tropical Natural History 21(1): 41–60, April 2021 ©2021 by Chulalongkorn University Taxonomy of Dendrolobium (Leguminosae) in Thailand WITSANU SAISORN1 AND PRANOM CHANTARANOTHAI2* 1School of Science, Walailak University, Nakhon Si Thammarat 80160, THAILAND 2Department of Biology and Centre of Excellence on Biodiversity (BDC), Faculty of Science, Khon Kaen University, Khon Kaen 40002, THAILAND * Corresponding author. Pranom Chantaranothai (
[email protected]) Received: 16 October 2020; Accepted: 21 January 2021 ABSTRACT.– Dendrolobium includes seven species and eight taxa in Thailand, viz. D. baccatum, D. lanceolatum (var. lanceolatum and var. microcarpum), D. olivaceum, D. rugosum, D. thorelii, D. triangulare and D. umbellatum. Four names are lectotypified, including Lespedeza lanceolata, Desmodium wallichii, Desmodium cephalotoides and Desmodium umbellatum var. costatum. Two names are reduced to synonymy, i.e., Lespedeza cambodiana under Dendrolobium lanceolatum and Dendrolobium rugosum var. moniliferum under Dendrolobium rugosum. KEY WORDS: Desmodium, Desmodieae, Fabaceae, Papilionoideae, taxonomy INTRODUCTION Dendrolobium and it is a contribution to the progress of the Flora of Thailand project. Dendrolobium was described by Bentham (1852). The species belonging to MATERIALS AND METHODS this genus have often been treated under Desmodium Desv. in various taxonomic categories, including Desmodium sect. The taxonomic study of genus Eudesmodium (De Candolle, 1825), Dendrolobium in Thailand is based on Desmodium subgen. Dendrolobium (Wight specimens from various herbaria viz. AAU, & Arnott, 1834), and Desmodium sect. ABD, BCU, BK, BKF, BM, BO, C, CMU, Dendrolobium (Bentham, 1864). Nowadays, CMUB, E, FOT, G, G-DC, HN, HNL, Dendrolobium is accepted again in several HNU, K, KEP, KKU, K-W, KYO, L, taxonomic works (e.g., Ohashi, 1973, 1998 NOUL, P, PSU, QBG, SING and TI.