该变异类型于1981年9月在福建油桐种质资源调查中发现,位于福建武平,生于桐林中,海拔高450m左右。历经五年之久的观察研究,命名为长果千年桐(Vernicia montanaLongisguo)。其形态特征为落叶乔木,高达6m,胸径20cm,树皮褐色;主枝近轮生,小枝无毛,有明显的皮孔。单叶互生,阔卵形至心脏形。长15—25cm,宽15—20cm,先端渐尖,叶形掌状,有5—7掌状脉,网脉极显著;叶脉明显呈褐红色,主脉常起伏不平,使叶片呈波 The variation type was discovered in the survey of the provenance of tung oilseeds in Fujian Province in September 1981. It was located in Wulin, Fujian Province and was born in Tonglin with an elevation of about 450m. After five years of observational research, it was named Vernicia montana Longisguo. Its morphological characteristics of deciduous tree, up to 6m, diameter at breast height 20cm, bark brown; main branch nearly whorled, twigs glabrous, with obvious lenticels. Leaves alternate, broad oval to heart-shaped. Long 15-25cm, 15-20cm wide, apex acuminate, palmately palmately, 5-7 palmate veins, reticulate very significant; vein was brown, the main vein often fluctuated, so leaves were wave