Phu Tho Prov., Tan Son Distr., Xuan Son Comm., Ten shale mountain, around point 21006′55” N, 104056′08” E, 600-900 m, about 3 km to SW of Du vill., 21007′26” N, 104057′29” E. In undisturbed and slightly logged evergreen primary forests on slopes of shale mountains. Small or medium-sized tree, 15-20 x 0.3-0.5 m.
HAL 11256 18 Oct 2007 Loc’s photos: 23373a-23373o Coll.: P.K. Loc, N.T. Vinh & L.P. Ngau
Grant from MOST, Council for Natural Science, Section of Life Sciences (6.077.06), Vietnam