獐牙菜属生药形态组织学的研究——Ⅱ.叶片的比较微形态学研究

MORPHOLOGICAL AND HISTOLOGICAL STUDIES ON THE CRUDE DRUGS OF SWERTIA Ⅱ. COMPARATIVE MICROMORPHOLOGICAL STUDIES ON THE LEAVES

本文报道12种国产獐牙菜属和花锚属药用植物叶片的扫描电镜观察结果,并比较对照了光镜下的微形态特征。研究表明:叶片的表面纹饰以及栅表比、气孔指数等显微特征对鉴定该类药用植物有一定的价值。文中并附电镜照片、绘图和比较表等。

In this paper,the micromorphological studies on the leaves of medicinal species of Swertia and Halenia in China,viz.,S.calycim Franch.,S.bimaculata(Sieb.et Zucc.)Hook.f.et Thorns,ex C.B.Clarke,S.nervosa(G.Don)Wall,ex C.B.Clarke,S.angustifolia Buch-Ham.ex D.Don,S.tenuis T.N.Ho et S.W.Liu,S.macrosperma(C.B.Clarke)C.B.Clarke,S,punicea Hemsl.,S.punicea var.lutescens Franch.ex T.N.Ho,S.fasciculate T.N.Ho et S.W.Liu,S.cincta Burk.,S.pubescent Franch.,Halenia corniculata(L.)Cornaz,were carried out with scanning electron microscope(SEM)and light microscope(LM).It is found that the palisade ratios,the stomatal index and the stomatal numbers of the leaves are useful characteristics for the identification of the crude drugs.Howe veer,the surface features including the primary and secondary ornamentations are more significant for the differentiation of the species.The results are described and illustrated with line drawings and SEM photographs.A compared table and a key for categorizing are also presented.