Species delimitation in the fern genus Lemmaphyllum (Polypodiaceae) based on multivariate analysis of morphological variation
Species delimitation in the fern genus Lemmaphyllum (Polypodiaceae) based on multivariate analysis of morphological variation
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基于形态变异多元分析的蕨类植物水龙骨属物种界定
DOI：
10.1111/jse.12019
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发表时间：
2013-07-01
影响因子：
3.7
通讯作者：
Zhang, Xian-Chun
中科院分区：
文献类型：
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作者：
Wei, Xue-Ping;Zhang, Xian-Chun
Lemmaphyllum，包括中国分离的Lepidogrammitis的物种划分被认为是悬而未决的。以前的治疗接受1至20个物种。本研究对该属植物标本的24个数量性状和13个质量性状进行了多变量分析和最大简约分析。共研究了558个标本，代表了中国11个先前接受的种和一个变种。结果表明，该属植物有3种2变种，分别为梨形肋褶菌Lemmaphyllum pyriforme、梨形肋褶菌L.喙草L. carnosum，L.肉质变种microphyllum和L.肉质变种干舌藻引入了两个新的组合和七个新的同义词。提供了识别码和分布图。本研究还阐明了两个以前被忽视的字符，在菌柄和板状棘球蚴基部的鳞片的诊断价值。
The species delimitation of Lemmaphyllum, including the former segregated Lepidogrammitis in China, was considered as unresolved. Previous treatments accepted between one and 20 species. In the present study, multivariate analysis and maximum parsimony analyses were carried out on data from herbarium specimens of this genus by evaluating 24 quantitative characters and 13 qualitative characters. In total, 558 specimens representing 11 previously accepted species and one variety in China were studied. As a result, three species and two varieties were recognized, Lemmaphyllum pyriforme, L. rostratum, L. carnosum, L. carnosum var. microphyllum, and L. carnosum var. drymoglossoides. Two new combinations and seven new synonyms were introduced. An identification key and distribution maps were provided. This study also elucidated the diagnostic value of two previously ignored characters, scales at the base of stipe and laminae hydathodes.