2. Millettia densiflora Mattapha, Lanors. & Lamxay in Mattapha et al. (2022: 76)

Type: — LAOS. Bolikhamxai Province, Khamkeut District, Pongpatao Village, mixed deciduous forest and older secondary forest, ca 833 m, 12 April 2021, Lanorsavanh & Lamxay SL2182 (holotype: HNL; isotypes: BKF, FOF, KKU) .

This species was originally described from one locality in central Laos (see Fig. 3 in Mattapha et al. 2022). We found that it is also distributed in central and southern Vietnam (Fig. 3).

Specimens examined. VIETNAM. Annam, Prov. Khanh Hoa, Phu Hu, entre Nha Trang et Ninh Hoa, au bord d’un torrent, sol tres rocheux le, 25 January 1923, M . Poilane 5469 (HN0000028058, L2048035); Quang Binh Province, B ố Tr ạch District, Phong Nha Ke Bang National Park, 15 December 2015, Shi-Jin Li 4116 (IBSC) .