Tupistra khangii Aver., N.Tanaka & Vislobokov var. nov.? stigma tripartite, with 3 strongly reflexed lobes at the end of anthesis
Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°32′31.6′N 103°39′40.4′E. Primary and secondary broad-leaved evergreen and semideciduous dry forest on very steep rocky slopes of limestone highly eroded mountains composed by solid marble like limestone at elev. 1200-1400 m a.s.l. Terrestrial herb on mountain slope. Locally very common. Fruits almost black. LA-VN 1041 4 April 2015. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham. Living specimen LA-VN 1041 / TM 1266 / garden no 15171. Fl. in 1 November 2016, Flowers white with violet tips of tepals. Flowered 6 Dec. 2017 Photos L. Averyanov Coll. in garden in 6 Dec. 2017, by L. Averyanov, photos.