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| 石韦属植物脉序特征及其分类学意义 | |
| 引用本文： | 邵文,杨鲁红,周喜乐.石韦属植物脉序特征及其分类学意义[J].植物科学学报,2016,34(2):191-199. |
| 作者姓名： | 邵文 杨鲁红 周喜乐 |
| 作者单位： | 1. 上海辰山植物园, 中国科学院上海辰山植物科学研究中心, 上海 201602; 2. 山西师范大学生命科学学院, 山西临汾 041004 |
| 基金项目： | 国家自然科学基金项目(31200162);上海市绿化和市容管理局科学技术攻关项目(F132422) |
| 摘 要： | 采用解剖学方法,研究了水龙骨科鹿角蕨亚科石韦属(Pyrrosia)17种植物的脉序特征,并与该科其它3亚科8属8个代表种的脉序进行了对比。结果显示,石韦属植物的脉序属于结合脉序,并可进一步细分为弯脉蕨型和拟槲蕨型。根据脉序特征的聚类分析表明,石韦属植物的结合脉序与水龙骨科其它属植物的结合脉序具有显著差异,且此脉序特征是石韦属内较稳定的分类性状,具有一定的分类学价值。本研究还基于脉序特征,讨论了石蕨(P.angustissimum(Giesenh.ex Diels)TagawaK.lwats.)、抱树石韦(P.piloselloides M.G.Price Kalikasan)与其它石韦属植物的亲缘与进化关系。 |
| 关 键 词： | 石韦属 水龙骨科 脉序特征 |
| 收稿时间： | 2015-08-04 |
Taxonomic Significance of Venation Pattern in Pyrrosia |
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| SHAO Wen,YANG Lu-Hong,ZHOU Xi-Le.Taxonomic Significance of Venation Pattern in Pyrrosia[J].Plant Science Journal,2016,34(2):191-199. | |
| Authors: | SHAO Wen YANG Lu-Hong ZHOU Xi-Le |
| Institution: | 1. Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical Garden, Shanghai 201602, China; 2. School of Life Science, Shanxi Normal University, Linfen, Shanxi 041004, China |
| Abstract: | The characteristics of the venation patterns of 17 species of Pyrrosia (Platycerioideae, Polypodiaceae) were studied using anatomical methods. Venation characteristics of eight species in eight genera of three subfamilies of Polypodiaceae were provided for comparative study. The results showed that the anatomizing venation patterns of Pyrrosia included campyloneuroid and pseudo-drynarioid type, which differed from other anastomosing patterns observed in Polypodiaceae based on morphological phylogenetic analysis. Venation patterns are relatively stable traits in classification, and can be used as a stable taxonomic characteristic in Pyrrosia. Based on the venation pattern and other anatomic evidence, the relationships of venation pattern among P. piloselloides M. G. Price Kalikasan and P. angustissima (Giesenh. ex Diels) Tagawa & K. lwats. with Pyrrosia are discussed. |
| Keywords: | Pyrrosia Polypodiaceae Venation pattern |
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