| 脓疮草复合体的形态性状分析与分类修订 |
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| 引用本文： | 赵一之,李素英,曹瑞,刘云波.脓疮草复合体的形态性状分析与分类修订[J].中国科学院研究生院学报,1998,36(3):193-205. |
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| 作者姓名： | 赵一之 李素英 曹瑞 刘云波 |
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| 摘 要： | 脓疮草复合体(Panzerina lanata complex)隶属于唇形科脓疮草属，原有6个合法学名。通过从内
蒙古、陕西、甘肃、宁夏及新疆等5个省或自治区的22个居群取样，进行野外和移栽后的对比观测及性
状分析，并结合多变量统计分析，从不同水平和角度对复合体进行了研究。结果表明，此复合体的根、茎
等都是环境可塑性很高的性状，叶次之，而花部、果实和种子性状的可塑性较小。以往划分复合体类群
的叶裂程度、茎叶被毛及萼齿形态等几个鉴别性状在天然居群中连续变化，以此划分的几个“种”，不过
是连续变异的极端个体。再结合地理分布的特征，将P．alaschanica、P．kansuensis和P. albescens归并
在P．1anata中，同样可证明P．argyracea不存在。对22个居群11个形态性状的统计学和主成分分析
与性状分析结果一致。研究表明，该复合体小坚果表面具疣与否、花冠超出萼筒的多少及花干后变色与
否等是其分种性状，以此分种标准该复合体可分为2种:Panzerina lanata(L．)Sojak和Panzerina parviflora(C．Y．Wu et H．W．Li)Y．Z.Zhao．
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| 关 键 词： | 脓疮草复合体 分类 性状取样 居群分析 |
The Analysis of Morphological Characters and a Taxonomic Revision on Panzerina anata (L.) Sojak Complex (Labiatae) |
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| ZHAO Yi-Zhi,LI Su-Ying,CAO Rui,LIU Yun-Bo.The Analysis of Morphological Characters and a Taxonomic Revision on Panzerina anata (L.) Sojak Complex (Labiatae)[J].Journal of the Graduate School of the Chinese Academy of Sciences,1998,36(3):193-205. |
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| Authors: | ZHAO Yi-Zhi LI Su-Ying CAO Rui LIU Yun-Bo |
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| Abstract: | Panzerina lanata ( L. ) Sojak complex is distributed on the Mongolia plateau.
Twenty-two populations representing six species in the complex: P. lanata, P. alaschani-
ca, P . kansuensis , P . albescens , P. argyracea and P . parviflora , were sampled through-
out the range of the complex including 2 provinces and 3 autonomous regions. Extensive
studies were carried out by comparison of wild collection and cultivation, and morphological
analysis based on character evaluation and multivariate procedures. It is showed that there ex-
ists considerable phenotypic plasticity in some morphological characters, especially those of
the root, caudex and leaf. However, the characters of flowers, capsules and seeds were less
influenced by environments. The character analysis indicates that some characters, which
were used to distinguish taxa of the complex, for example the degree of leaf division, the
morphology of calyx and so on, are continuous in a wide range in wild populations. Some
“species” in the complex described according to the differences in those characters are only
extreme individuals within their continuous variation. As a result, the above analysis and
their geographical distribution suggest that P. alaschanica , P. kansuensis , P. albescens be
actually the extreme individuals within P. lanata. In the same way, P. argyracea is in-
valid. The principal components analysis of 11 morphological characters on the individuals
from 22 populations shows no differences. Thus, this paper considers that characters such as
nutlet with or without wart, size of corolla exceeding calyx or not and dry flowers with or
without colour, may be used to distinguish taxa of this complex. From the above analysis, it
is indicated finally that the six species in this complex are better reduced taxonomically into
two species, namely P. lanata (L.) Sojak and P. parviflora (C. Y. Wu et H. W. Li)
Y. Z. Zhao, the difference of two species as follow:
Nutlet surface smooth; corolla, 2～2.2 cm long; flower white and unchanging after dry
.......................................................... Panzerina parviflora
Nutlet surface tuberculate; corolla, 2.5～ 4 cm long; flower white, but becoming yel- lowish after dry ....................................................... P. lanata |
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| Keywords: | Panzerina lanata complex Taxonomy Character analysis Population sampling |
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