河南省铁线莲属植物资源研究

在大量野外调查和标本研究工作的基础上,对我国河南省境内的铁线莲属植物的应用价值、资源分布状况与利用进行了分析和评价。结果表明,河南铁线莲属植物资源丰富,共有35个类群(24种、1亚种及10变种),约占全国的17%,这一数字高于有文献记载的河南省周边省份。河南铁线莲属植物绝大多数分布于本省北部、西部和南部山区,平原地区种类较少,各区域分布的种类数量从高到低依次为伏牛山大别山桐柏山太行山小秦岭=王屋山平原地区。河南铁线莲属植物垂直分布集中于海拔600~1 200 m区域,分布海拔≥1 500 m的铁线莲属植物种类有8个类群,≥2 000 m的有3个类群,＜200 m的有8个类群。河南铁线莲属植物与附近省份比较,其相似性与山西省最为接近(36.8%),而与山东省相似程度最低(10.8%),这与河南铁线莲属植物多数种类分布于山区而山东省山区面积较小有关。已确认的河南铁线莲属植物的35个类群均具有或具有潜在的园艺学价值,可供垂直绿化或作木本地被植物,有30个类群具有药用价值,1个种类具有食用价值。本研究对河南铁线莲属植物资源及其应用价值进行了系统而全面的鉴定和整理,为河南省植物资源和我国铁线莲属植物资源的开发和利用提供了重要科学依据。 

Resource study on Clematis plants in Henan Province,central China

The application value, resource distribution status and utilization were analysed and evaluated based on a great deal of field investigation and specimen research work. The results showed that it is rich of Clematis plant resource in Henan Province, totally 35 taxa (24 species, one subspecies and 10 varieties) of Clematis, accounted for 17% species in China. This number is higher than any other adjacent provinces. Most of the Clematis species distributed in northern, western, and southern mountain areas of Henan Province, and very few species distributed in plain area. Within Henan Province, areas bearing Clematis species from high to low are Funiu Mountain >Dabie Mountain >Tongbai Mountain >Taihang Mountain > Xiaoqinling Mountain = Wangwu Mountain > Plain area. Clematis species in Henan Province are mainly distributed in the areas of 600--1 200 m in elevation. Eight taxa distributed in the area higher than 1 500 m, three distributed in the area higher than 2 000 m, whereas, eight species occurred lower than 200 m. Compared with the adjacent provinces in Clematis species distribution, The similarity is the highest between Henan and Shanxi provinces(36. 8%), and the lowest between Henan and Shandong provinces(10. 8%) . This because there are not many mountain areas in Shandong Province like Henan and Shanxi provinces. Among the 35 taxa in Henan Province, all the taxa may have horticultural values or potential horticultural values for vertical greening or cover plants, and 30 of them are of medicinal important, and one species is edible as vegetable. This study conducts a systematic and comprehensive identification and sorting of the Clematis plant resources and its application in Henan Province. It provides an important scientific basis for the development of plant resources in Henan Province and Clematis plant resources in China.