within the tribe Millettieae remain poorly understood and the genus Millettia itself shares several important characters with other closely related genera within the tribe (Hu et al., 2000). Recently, Schrire (2005) has also suggested that the circumscription of a revised tribe is impossible unless the genera within the tribe are more comprehensively sampled in phylogenetic studies.Working within the current generic framework (Dunn, 1912) for the Flora of Thailand, we describe three new species under the broad generic circum-scription of the genus Millettia (sensu Geesink, 1984). Additionally, we present new synonymies, lectotypifications and a new status