摘 要 ：本文订正了西双版纳产龙脑香科植物，新组合望天树(Shorea chinensis(Wang Hsie) H. zhu，comb．nov．)，归并异名版纳青梅(Vatica xishuangbannaensis G．D．Tao et J．H．Zhang，syn．nov．)，并重新讨论了它们的亲缘关系。
Abstract:A revision is made to the species of Dipterocarps found in Xishuangbanna, Yunnan Province. The specific epithet of Parashorea chinensis Wang Hsie is a basonym which is trans-ferred to the new combination Shorea chinensis (Wang Hsie) H. Zhu. While the Vatica xishuangbannaensis G.D.Tao et J. H. Zhang is a synonym of Vatica guangxiensis X. L. Mo. In addition, their relative affinities of these two taxa are discussed.