摘要: |
马尾杉属植物同近缘属石杉属植物一样因含治疗阿尔茨海默症的特效药成分石杉碱甲而具有重要经济和保护价值。本研究基于形态学和叶绿体基因分子系统学分析,将中国和亚洲分布的马尾杉属植物划分为4个单系的组,即金丝条马尾杉组Sect. Fargesiani X. C. Zhang & R. H. Jiang,sect. nov.,喜马拉雅马尾杉组Sect. Hamiltoniani C. Y. Yang, emend. X. C. Zhang & R. H. Jiang,马尾杉组Sect. Phlegmariurus和粗糙马尾杉组Sect. Squarrosurus (Herter) X. C. Zhang & R. H. Jiang,comb. & stat. nov.,并对这些组的概念和范围进行了重新界定;确认我国有马尾杉属植物21种,将P. qiongzhongensis,P. austrosinicus,P. taiwanensis,P. changii,Huperzia medogensis,P. cancellatus var. minor,P. shangsiensis,和P. nylamensis等11个学名处理为异名;修订后承认我国有马尾杉属植物21种,并给出了分种检索表、形态描述、标本引证和和形态特征图。 |
关键词: 马尾杉属 属下分类系统 分类修订 |
DOI: |
分类号: |
Fund project:国家自然科学基金(32160048,31370260,31470317),广西林草种质资源普查与收集(桂林科字[2021]第34号) |
|
A Taxonomic Revision of the lycophyte genus Phlegmariurus Holub (Lycopodiaceae) from China |
JIANG Rihong1, Xiang Ruichen2,3, & ZHANG Xianchun2,3
|
1.Guangxi Zhuang Autonomous Region Forestry Research Institute;2.State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,;3.State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences
|
Abstract: |
Plants of the lycophyte genus Phlegmariurus like its sister genus Huperzia in producing Huperzin A have great economic and conservation values. Based on extensive field investigation and herbarium observation, combined with molecular phylogeny analysis, we conducted a taxonomic revision of the lycophyte genus Phlegmariurus from China and neibouring regions. The Asian species of the genus were classified into four monophyletic sections based on molecular phylogenetic analysis of the chloroplast genes. One section, sect. Fargesiani X. C. Zhang & R. H. Jiang is a new section and the other three sections were revisied respectively, i.e., Sect. Hamiltoniani C. Y. Yang, emend. X. C. Zhang & R. H. Jiang; Sect. Phlegmariurus; and Sect. Squarrosurus (Herter) X. C. Zhang & R. H. Jiang, comb. & stat. nov. Ten taxa, P. qiongzhongensis, P. austrosinicus, P. taiwanensis, P. changii, Huperzia medogensis, P. cancellatus var. minor, P. shangsiensis and P. nylamensis were reduced to synonymies of various species of Phlegmariurus. Twentyone species were recognized from China. A key to all the species was provided, for each section and species detailed morphological descriptions and geographic distribution were provided. |
Key words: Phlegmariurus, Infrageneric classification, Taxonomic Revision |