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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2013, Vol. 39 Issue (4): 375-380    DOI: 10.3785/j.issn.1008-9209.2012.08.271?
生物科学与技术     
基于形态性状分析的浙江茜草科胀节假盖果草亚种新组合
叶立新1， 周莹莹2， 刘玲娟1， 陈伟杰2， 刘胜龙1， 郑朝宗3， 金孝锋2*
（1.浙江凤阳山-百山祖国家级自然保护区凤阳山管理处,浙江 龙泉 323700;2.杭州师范大学生命与环境科学学院,杭州 310036;3.浙江大学生命科学学院,杭州 310058)
Pseudopyxis heterophylla subsp. monilirhizoma (Rubiaceae, tribe Paederieae), a new combination from Zhejiang of China, based on morphological trait analysis
YE Lixin1, ZHOU Yingying2, LIU Lingjuan1, CHEN Weijie2, LIU Shenglong1, ZHENG Chaozong3, JIN Xiaofeng2*
(1. Administration of Zhejiang FengyangshanBaishanzu National Natural Reserve, Longquan, Zhejiang 323700, China; 2. College of Life and Environment Sciences, Hangzhou Normal University, Hangzhou 310036, China; 3. College of Life Sciences, Zhejiang University, Hangzhou 310058, China)
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摘要： 茜草科（Rubiaceae）假盖果草属（Pseudopyxis）共3种，分布于中国和日本，其中胀节假盖果草（P. monilirhizoma）为近年发表的新种，特产浙江凤阳山。 在文献查阅、野外采集和标本整理鉴定的基础上，对产于日本的P. depressa、P. heterophylla和特产于中国的胀节假盖果草形态性状进行主坐标分析（PCoA），并对茎的毛被和种子微观形态进行扫描电镜观察。结果表明：在PCoA散点图中，P. heterophylla 和胀节假盖果草不能明显区分，而P. depressa与这二者区别明显；P. heterophylla和胀节假盖果草在茎的毛被方面也无区别，但胀节假盖果草种子表面除有纵肋外，还有瘤块状突起，与P. heterophylla有所区别。通过形态性状和种子微观形态分析，认为假盖果属的已有3个种应归并为2个种，将胀节假盖果草作为P. heterophylla的亚种处理, 组合为P. heterophylla subsp. monilirhizoma (Tao Chen) L. X. Ye, C. Z. Zheng & X. F. Jin.
Abstract: Pseudopyxis Miq., a genus distributed in eastern China and Japan, comprises three species, in which Pseudopyxis monilirhizoma Tao Chen is endemic to China. The variation analysis of the diagnostic characters among these three species of Pseudopyxis was carried out. Based on principal coordinate analysis (PCoA) of eighteen morphological characters, the individuals of P. depressa were separated distinctly from P. heterophylla + P. monilirhizoma, whereas the separation between P. heterophylla and P. monilirhizoma was not clear. The observations of stem indumentum and seed micromorphology showed the difference between P. depressa and P. heterophylla + P. monilirhizoma, while that of P. heterophylla and P. monilirhizoma was consistent. In case of the observations of stem indumentum and seed micromorphology and PCoA of morphological characters, P. monilirhizoma is consequently combined as a subspecies of P. heterophylla (Miq.) Maxim., and the combination of P. heterophylla subsp. monilirhizoma (Tao Chen) L. X. Ye, C. Z. Zheng & X. F. Jin is proposed.
出版日期: 2013-07-20
CLC:  Q 949  
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叶立新1
周莹莹2
刘玲娟1
陈伟杰2
刘胜龙1
郑朝宗3
金孝锋2*

引用本文:

叶立新1， 周莹莹2， 刘玲娟1， 陈伟杰2， 刘胜龙1， 郑朝宗3， 金孝锋2*. 基于形态性状分析的浙江茜草科胀节假盖果草亚种新组合[J]. 浙江大学学报(农业与生命科学版), 2013, 39(4): 375-380.

YE Lixin1, ZHOU Yingying2, LIU Lingjuan1, CHEN Weijie2, LIU Shenglong1, ZHENG Chaozong3, JIN Xiaofeng2*. Pseudopyxis heterophylla subsp. monilirhizoma (Rubiaceae, tribe Paederieae), a new combination from Zhejiang of China, based on morphological trait analysis. Journal of Zhejiang University (Agriculture and Life Sciences), 2013, 39(4): 375-380.

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http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2012.08.271?    或    http://www.zjujournals.com/agr/CN/Y2013/V39/I4/375

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