FLORA OF LAOS Hin Nam No Nature Protected Area Begoniaceae Begonia tatianae Aver. Laos, Khammoune prov., Boualapha distr., Vang Maner village, around point 17°29'39.3"N, 105°50'24.6"E. Primary dry evergreen and semideciduous broad-leaved forest on very steep rocky slope near karstic hill top composed with solid, marble-like highly eroded limestone at 350-430 m a.s.l. Lithophytic herb on shady rocks near hill top. Leaves above pale green with white palmately oriented white spots, below light green to pale pinkish, petioles dull pinkish. Not common. 9 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 820b. Herbarium specimen prepared in 19.04.2019, L. Averyanov, AL 820b.1. Flowers white with light pink tint, anther and stigma bright yellow.