香果树(Emmenopterys henryi Oliv.)又称木丁树。茜草科香草树属仅此一种。我国特产,被列为国家二级保护植物。据有关文献记载,我省的白河、洋县、勉县有分布。1982年7月,在省宁西林业局蒲河林场的臭椿沟海拔1210米处发现香果树。这对研究秦岭植物区系组成和林业生产有一定意义。(一)形态特征落叶大乔木,高可达30米。树皮棕褐色,小枝有皮孔。叶对生,有长柄,薄革质,宽椭圆形至宽卵形,长达20厘米,顶端急尖或渐尖,基部宽楔形至近圆形,上面无毛,下面全被淡黄色柔毛,沿脉更密。托叶大,呈三角状卵形,早落。聚伞花序,排成顶生大型 Emmenopterys henryi Oliv. Rubiaceae vanilla tree is only one. China’s specialty, was listed as two national protected plants. According to the relevant literature, the province’s Baihe, Yang County, Mian have distribution. In July 1982, the fragrant fruit tree was found at an altitude of 1210 meters above the stinkbug of Puhe Forest Farm in Ningxi Forestry Bureau. This study of Qinling flora composition and forestry production of some significance. (A) morphological characteristics Deciduous trees, up to 30 meters high. Bark tan, branchlets with lenticels. Leaves opposite, long-handled, thinly leathery, broadly elliptic to broadly ovate, as long as 20 cm, apically acute or acuminate, base broadly cuneate to suborbicular, glabrous above, all below yellowish pilose , Closer along the pulse. Stipulation large, triangular-ovate, early fall. Cymes, arranged in a very large top