磨盘草与其易淆品苘麻的叶形态-脉序图谱的鉴别特征  

Identification characters of leaf morphological and venation pattern of Abutilon indicum with its confused herb A. theophrasti

作　　者：何报作[1] 朱意麟[1] 廖月葵[1] 黎理[1] 周媛[1] 袁正伟[1] 曾静[1] 

机构地区：[1]广西中医药大学药学院,广西南宁530001

出　　处：《中国中药杂志》2012年第15期2262-2266,共5页China Journal of Chinese Materia Medica

基　　金：国家自然科学基金项目(30860371)

摘　　要：目的:寻找磨盘草与其易淆品苘麻的鉴别特征,建立有效的鉴别方法。方法:LMVP(叶形态-脉序图谱鉴别法),QAERM(定量分析评价鉴别中药品种真伪方法的可靠性的方法)。结果:主要区别点为磨盘草叶的睫毛短(75～200μm)、不易察见,叶柄上端具较长的展开毛(长达1.0～1.2 cm),中脉下部的三级脉或间脉的夹角多为宽锐角,少近直角;苘麻叶的睫毛较长(200～500μm)、易察见,叶柄上端具较短的展开毛(多长0.1～0.5 mm),中脉下部的三级脉或间脉的夹角多为近直角,少宽锐角。同时以上述3组区别点为指标,鉴别结果的正确性(Ac)97.5%～99.6%;重复性为符合率(ARO)97.1%,一致性强度(Kappa)0.94。结论:建立的"叶形态-脉序图谱鉴别法"可准确鉴别磨盘草及易淆品苘麻。操作简便、快速、价廉、可靠性强。Objective： To study the identification characters of Abutilon indicum and its confused herb A.theophrasti and establish an identification method.Method： LMVP（leaf morphological-venation pattern for identification Chinese herbs）,and QAERM（quantitatively analyze and evaluate reliability for the method of identification Chinese herbs） were applied for the study.Result： The main differences of the leaf of Abutilon indicum： leaf margin cilia short and not clear（75-200 μm）,petiole top with long straight hairs（up to 1.0-1.2 cm）,when the tertiary veins and intersecondary veins issue from the lower part of midrib,their angles of divergence usually were wide acute（65°-80°） and a few was about right angle（80°-100°）.The main differences of the leaf of A.theophrasti： leaf margin cilia long and clear（200-500 μm）,petiole top with short straight hairs（most 0.1-0.5 mm）,when the tertiary veins and intersecondary veins issue from the lower part of midrib,their angles of divergence usually were about right angle（80°-100°） and a few was wide acute（65°-80°）.With the mentioned three groups of key differences,the both plants could be successfully identified from each other.The accuracy of identification results（AC） was from 97.5% to 99.6%,the repeatability of identification results： agreement rate for observation（ARO） was 97.1% and Kappa value was 0.94.Conclusion： The established method is simple,rapid,economic and reliable.

关 键 词：磨盘草 苘麻 叶形态 脉序图谱 中药鉴定 

分 类 号：S54[农业科学—作物学]