1. Brachypterum eriocarpum (F.C.How) Adema & Sirich. in Sirichamorn & Adema(2020: 58)

≡ Derris eriocarpa F.C. How (1954: 223, Pl. XXX:fig. 3–9) ≡ Solori eriocarpa (F.C.How) Sirich. &Adema in Sirichamorn et al. (2014: 532).

Type: — CHINA. Guangxi, Lung Chow, Naye, Beiyueshan, 19 Jun 1935, S.P. Ko 55325 (lectotype designated here: IBSC0004536; isolectotypes: IBSC0036301, IBK00200016, IBK00190851, MO-04100392) .

= Brachypterum pseudorobustum (Thoth.) Adema &Sirich. in Sirichamorn & Adema (2020: 58) ≡ Derris pseudorobusta Thothathri (1962: 181, fig.2) ≡ Solori pseudorobusta (Thoth.) Sirich. &Adema in Sirichamorn et al. (2014: 533), syn. nov. Type: — INDIA.Tirap Frontier Division, Kheti to Thincha, 22 Aug 1958, G. Panigrahi 14550 (holotype: CAL0000011084 image!; isotype: ASSAM 0000000133 image!).

Phenology: —Flowering during May to July, and fruiting during June to December.

Distribution: —This species is known to occur from China, India, Laos, Myanmar and Vietnam. It was previously reported also from northern Thailand (Chen & Pedley 2010), but it was not mentioned in Flora of Thailand (Sirichamorn 2020). This is a new species record in the flora of Myanmar.

Specimens examined:— CHINA. Guangxi: Baise, 742 m, flower, 22 May 2015, Tianyang Exped. 451021150522009 LY (GXMG0170711); Fengshan, 755 m, fruit, 28 Aug 2013, B. Y . Huang et al. 451223130828030 LY (GXMG0102747, GXMG0102748); Jingxi , 800 m, 19 Dec 1958, C. C . Chang 14530 (IBK00071312), 19 Dec 1958, C. C . Chang 14780 (IBK00071321) , 900 m, 25 Dec 1958, C. C . Chang 15219 (IBK00071313, IBSC0175081), 6 Nov 1958, Y. C . Chen 815 (IBK00071322), fruit, 12 Oct 2014, Y . D. Peng et al. 451025141012071 LY (GXMG0104589) , 980 m, flower, 16 Nov 2010, Y. S . Huang et al. LYJX1105 (GXMG0097481); Lingyun, flower, 11 Jun 1933, A. N . Steward & H. C . Cheo 651 (A, BM, BO-1703798); Lingyun , 750 m, flower, 15 Sep 1989, Huanan Exped. 1553 (IBSC0169631), fruit, 4 Aug 1928, L. H . Chun 92535 (IBK00071324, IBK00071328, IBK00071330), fruit, 25 Jul 1960, Lingle Exped. 33687 (IBK00071325), flower, 7 Jun 1960, Lingle Exped. 34347 (IBK00071318) , 716 m, fruit, 16 Mar 2014, Lingyun Exped. 451027140316007 (GXMG0140685, GXMI063956); Longzhou, 550–870 m, flower, 13 Jun 1957, S. H . Chun 11838 (IBK00071314, IBSC0175084), flower, 19 Jun 1935, S. P . Ko 55325 (IBK00190851, IBK00200016, IBSC0004536, IBSC0036301, MO); Luchen , 1500 ft, flower, 6 Jun 1928, R. C . Ching 5698 (A, IBK00071327, IBSC0175087, IBSC0175091, NAS00382845, PE00303250) , 1600 ft, fruit, 27 Jul 1928, R. C . Ching 6559 (IBK00071331, IBSC0175089, NAS00071312, NAS00382841, NAS00382842, PE00303251); Luocheng, flower, 5 Aug 1951, S. K . Lee A015 (IBK00071323, IBSC0175083); Mashan, 27 Aug 1958, S. Q . Zhong 301473 (IBK00071317); Nandan , 269 m, fruit, 30 Oct 2017, Nandan Exped. 451221171030047 LY (GXMG0199480); Nanning, flower, 17 Jul 1960, Anonymous 10372 (IBSC0175088), cultivated, fruit, 18 Jul 1977, X. C . Huang 266 (GXMG0061148); Napo, fruit, 10 Dec 1958, C. C . Chang 13560 (IBK00071326) , 750–850 m, 11 Oct 1958, C. C . Chang 14143 (IBK00071315), fruit, 27 Dec 1958, C. T . Li 602388 (IBK00071316) , 1280 m, fruit, 27 Dec 2012, D. X. Nong et al. 451026121227011 LY (GXMG0098562, GXMG0098563), 1300–1400 m, fruit, 25 Oct 1997, H . Akiyama et al. 1357 (KUN1290144), flower, 6 Oct 1935, S. P . Ko 55860 (IBSC0175086); Pingguo, flower, 26 May 2015, H. Z . Lv et al.451023150526006 LY (GXMG0178915), flower, 29 May 2015, H. Z . Lv et al.451023150529014 LY (GXMG0178914), flower, 23 May 1957, Y. K . Li P01279 (IBK00071319, IBSC0186624); Shanglin, flower, 2 Jun 1933, S. S . Sin 25250 (IBSC0175085); Tiane, fruit, 27 Aug 1958, C. T . Li 601378 (IBK00397033, KUN0608210); Tianlin , 2100 m, flower, 6 Jun 1958, C. T . Li 600627 (IBK00071329) , 957 m, flower, 31 May 2013, Tianlin Exped. 451029130531034 (GXMI056848), 19 Apr 1956, Y. K . Li 773 (IBK00071320) ; Guizhou: Xingyi, 1050 m, flower, 18 Jul 1960 , Guizhou Exped. 6250 (HGAS020084); Yunnan: Baoshan, 1370 m, flower, 17May 1955, Sino-Soviet Yunnan Exped. 6311 (PE00499990); Cangyuan , 800–900 m, fruit, 13 Jun 1974, Y. H . Li 11998 (KUN0608261); Hekou , 1370 m, fruit, 3 Aug 1953, W. S . Liou 430 (HITBC0012643, HITBC019035, KUN0608230, PE00499162) , 950 m, fruit, 25 Aug 1993, Y. M . Shui 3623 (BJM0154411, PE00499876); Jiangcheng, fruit, 4 Aug 1990, Y. Y . Qian 2066 (HITBC0012637); Jinping , 1150 m, flower, 26 May 1956, K. M . Feng 2662 (KUN0608258, PE00499991) , 1260 m, flower, 22May 1956, Sino-Soviet Yunnan Exped. 2485 (KUN0608259), 1150 m, flower, 26May 1956, Sino-Soviet Yunnan Exped. 2662 (IBSC0175095), 1432 m, flower, 29 May 2012, Jinping Exped. 5325300500 (IMDY0009785), 1450 m, fruit, 18Aug 1957, P. I . Mao 403 (HITBC0012639, PE00499164, PE00499168, PE00499169, HITBC019020); Lancang , 1305 m, fruit, 24 Jun 2020, D. P . Ye 1031 (HITBC0056611, HITBC0056612, HITBC0056613); Luoping , 850 m, flower, 30Jun 1940, Xiangliao Zhiwu Exped. 870284 (KUN0608246); Lvchuan, 1600 m, fruit, 30 Jul 2005, H . Wang 7673 (HITBC0012635) , 900–1000 m, flower, 25 May 2014, L . Wu 4675 (BNU0020127); Maguan , 1367.7 m, fruit, 10 Aug 2015, Maguan Exped. 5326251278 (IMDY0037165); Malipo, 1230 m, fruit, 19 Sep 2010, B . Xiao LuJL298 (KUN1320109, KUN1320110, KUN1320111), flower, 24 May 1962, K. M . Feng 22766 (IBSC0175093, KUN0608239); Menghai , 1540 m, flower, May 1936, C. W . Wang 74049 (A, IBSC0175092, KUN0608263) , 1113 m, flower, 23 May 2012, Menghai Exped. 5328220372 (IMDY0009773), 1057 m, fruit, 4 Jul 2021, X. D. Zeng Z2318 (HITBC0062453), 1003 m, flower, 17 May 2021, X. M . Zeng ZX636 (HITBC0059709), fruit, 28 Jul 2014, H . Peng et al. JL62 (KUN1264027); Mengla , 1200 m, fruit, 3 Jul 2006, H . Wang 8255 (HITBC0012636) , 1000 m, fruit, 9 Dec 2010, J. T . Yin & J. W . Li 1944 (HITBC0030203) , 975 m, fruit, 8 Jul 2015, Mengla Exped. 5328230543 (IMDY0031747), 1551.6 m, fruit, 17 Oct 2015, Mengla Exped. 5328231153 (IMDY0032859), 1260 m, flower, 21 May 1961, Y. H . Li 3270 (HITBC0012640) , 1210 m, flower, 23 May 1961, Y. H . Li 3270 (KUN0608232), fruit, 23 Jun 1961, Y. H . Li 3407 (KUN0608233) , 1260 m, flower, 21 May 1961, Y. H . Li 3270 (HITBC019019), fruit, 28 Jul 2019, B . Yang G2-620 (XSBN000883) , 887 m, fruit, 13 Aug 2022, Z. Q . Song 2022051 (IBSC); Mengzi , 5000 ft, flower, A . Henry 10770 (A, IBSC0175094, NY, US); Pingbian , 1100 m, fruit, 21 Jul 1936, C. W . Wang 74778 (KUN0608267) , 1200 m, fruit, 1939, C. W . Wang 81852 (KUN0608225, NF2009106), fruit, May 1940, H. T . Chang 1541 (IBSC0175090) , 1300 m, flower, 19 Jun 1934, H. T . Tsai 60324 (A, IBSC0175100, NAS00390777) , 1100 m, flower, 21 Jun 1934, H. T . Tsai 60409 (A, IBSC0175101) , 1400 m, flower, 27 Jun 1934, H. T . Tsai 60425 (A, IBSC0175099, KUN0608252, NAS00382917, NAS00382930, SZ00111276) , 1300 m, flower, 3 Jul 1934, H. T . Tsai 60654 (A, IBSC0175098, NAS00382919) , 900 m, fruit, 19 Sep 1954, K. M . Feng 4561 (KUN0608236) , 1200 m, flower, 1953 Jun 15, P. I . Mao 2092 (KUN0608250) , 1480 m, fruit, 6 Sep 2012, Pianbian Exped. 5325230998 (IMDY0009790); Tengchong, 1420 m, fruit, 28 Oct 2015, Tengchong Exped. 530522151028868 LY (IMDY0030670), 1320–1500 m, fruit, 15 Oct 1960, W. C . Yin 1444 (KUN0608234); Xichou , 1200 m, fruit, 22 Dec 1939, C. W . Wang 85844 (HITBC0012642, IBK00262664, KUN0608226, NF2009107) , 1180 m, fruit, 27 Jul 1980, H . Li 75 (KUN0608223) , 1400–1500 m, fruit, 29 Aug 1947, K. M . Feng 11444 (KUN0608237, PE00177947) , 1490 m, fruit, 13 Nov 1965, Wenshan Sect. 292 (KUN0608227, PE0049174); Ximeng, 1041 m, fruit, 27 Jun 2020, D. P . Ye 1122 (HITBC0062827); Yingjiang , 1027 m, fruit, 14 Dec 2012, Y. J . Guo et al. 12 CS5271 (KUN1320095); Yuanyang , 900 m, flower, 23 May 1953, H . X. Sha & R. C . Dai 38 (KUN0608260) , 1100 m, flower, 4 Jun 1974, Lvchun Exped. 1458 (KUN0608262, PE00499884), 1500 m, flower, 12 Jun 1974, Lvchun Exped. 1919 (KUN0608266); Without precise locality, flower, 1956, Sino-Soviet Yunnan Exped. 3111 (IBSC0175097, KUN0608249), flower, 1956, Sino-Soviet Yunnan Exped. 3602 (KUN0608255) . INDIA. Assam: Kangpokpi, Naga Hills, 3000 ft, flower, 20 Jun 1935, N. L . Bor 6377 (K001415704), Satthazumi, Naga Hills , 4500 ft, flower, 28 Jun 1935, N. L . Bor 4495 (K001415705); Tirap Frontier Division: Kheti to Thincha, fruit, 22 Aug 1958, G . Panigrahi 14550 (ASSAM 0000000133, CAL0000011084) . LAOS. Houaphan: Houa Muong District, flower, 15 May 2005, B. H . Southavong LAOS701 (L4310697), Xam Nua Dist ., 1056 m, flower, 4 Jun 2013, Leong-Skrnickova et al. JLS2318 (E00715069, P01067494); Khammouanc: Phou Thane, flower, 1903, Spire 475 (P02767428); Phong Sali: de Phong Sali à Bun Tay , 1500 m, flower, 8 May 1936, M . Poilane 26012 (P00700382) ; Xieng Khouang: de Nong Het ù Muong Sing, 700–800 m, fruit, 12 Sep 1929, M . Poilane 16946 (P02767430, P02767431) . MYANMAR. Valley of the Pa-li Ho, 26°21’N, 98°40’E, 7000 ft, flower, Jun 1934, G . Forrest 24652 (E00899770) . VIETNAM. Cao Bang: 1400 m, fruit, 14 Nov 1998, L . Averyanov et al. CBL232 (P03615396, P03615397) ; Lai Châu: 15 km à l’est de Binh Lu, 1200–1400 m, fruit, 13 Aug 1926, M . Poilane 12919 (P02767426, P02767427) ; Lào Cai: Sa Pa (Chapa), 1300 m, fruit, Aug 1931, Petelot 4704 (P00700383, P02767425) .