FLORA OF VIETNAM Begoniaceae Begonia sp. Cao Bang Prov., Thong Nong Distr., Yen Son Municipality, Nhieu Lung village, around point 22°46'07.9"N, 105°53'59.4"E. Primary fractionaly logged coniferous forest with Pseudotsuga sinensis along highly eroded rocky limestone ridge at elevation 1150-1250 m a.s.l. Lithophytic rosulate herb on vertical cliffs in shady humid place in rocky valley. Leaves dark green with light green palmate markings above, light green with purple nerves below. Flowers pink, anther yellow. Locally very common. 8 October 2013 CPC 5472 L.Averyanov, N.T.Hiep, L.M.Tuan, N.S.Khang, T.Maisak, L.Osinovets