Tuyen Quang Prov., Na Hang Distr., Sinh Long Municipality, from central of Nam Duong Vill. through Xo Lo Che site to the direction of Ban Doang Vill., belonging to Prov. Ha Giang, around point 22°35′58″ N, 105°20′50″m 626 m In logged closed primary evergreen broad-leaved lowland forests on slope of sandy- or shale-stone mts. Big trees, up to 30 x 0.5-0.7 m; fruits similar to M. rostrata ?, fallen down and destroyed by CPC 1334 13 Mar 2011 Coll.: N.Q.Hieu, N.T.Hiep, P.K.Loc, N.T.Vinh