| 刊名 | Journal of Landscape Research |
| 作者 | ZHANG Chulei1, WANG Yun2 |
| 作者单位 | 1. Guangdong Technology College, Zhaoqing, Guangdong 526100, China; 2.Henan University of Science and Technology, Luoyang, Henan 471023, China |
| DOI | 10.16785/j.issn 1943-989x.2025.6.010 |
| 年份 | 2025 |
| 刊期 | 6 |
| 页码 | 41-44,48 |
| 关键词 | Acer, Leaf venation, Cluster analysis, Classification |
| 摘要 | To explore the taxonomic significance of leaf venation characteristics in Acer plants, the herbarium specimens of 11 Acer plants were used as the materials. By preparing leaf venation specimens of 11 Acer plants, their leaf venation characteristics were observed and measured. Moreover, values were assigned to the leaf venation characteristics, and cluster analysis was conducted. The results showed that: the primary veins from 11 Acer plants were palmate or pinnate; the secondary veins were craspedodromous or true curved; the intersecondary veins were simple or compound; the tertiary veins were reticulate, terminal, or both; the interveinal areas were mostly well-developed, with a few being underdeveloped; the venules were absent, linear, or with 1 to 3 branches; the terminal venation of the leaf margin was mostly circular, with a few being incomplete. Cluster analysis based on the characteristics of leaf venation revealed that simple leaf types were more primitive, while compound leaf types were more evolved. The two types within Ser. Palmata were the most primitive; there was a close relationship between Sect. Platanoidea and Sect. Integrifolia; there was a close relationship between Sect. Ginnala and Sect. Lithocarpa; however, there was no support for a close relationship between A. davidii and A. davidii subsp. grosseri. The venation characteristics of Acer plants can provide new research materials for the classification of plants within the genus. |
