河南白蜡树属植物的研究

为了给园林绿化、用材林、经济林、水源涵养林等提供白蜡树属优良树种，对河南白蜡树属Fraxinus Linn.植物资源、良种选育等问题系统地进行了研究，并对该属植物资源进行了调查和引种驯化研究，并初步提出河南白蜡树属分类系统。结果表明：该属植物分类系统为：属、亚属、组、亚组、种、亚种、变种；河南白蜡树属植物种质资源有：2亚属、5组、2亚组、18种、1亚种、6变种，其中有：2新记录亚属、5新记录组、1新亚组、5新记录种、1新记录亚种、2新记录变种、2变种及2新变种。同时，对它们还记述该属植物的优良特性和主要用途等。

Study on the Species of Fraxinus from Henan Province

In order to provide excellent Fraxinus species for landscaping, timber forest, economic forest and water source conservation forest, etc., the author not only systematically studied the genus germplasm resources and variety breeding, but also carried out an investigation on the introduction and acclimatization of species resources of the genus in Henan. In addition, the author tentatively put forward Henan Fraxinus classification system in this paper. The research results showed that the classification system of the genus was: genus, subgenus, group, subgroup, species, subspecies, varieties; this genus was divided into 2 subgenera, 5 groups, 2 subgroups, 18 species, 1 subspecies, 6 varieties, including 2 new record subgenus, 5 new record group, 1 new subgroup, 5 new record species, 1 new record subspecies, 2 new record varieties，2 varieties and 2 new varieties. At the same time, the author also described the main use and excellent properties of the genus and so on.