唐古特大黄、掌叶大黄和药用大黄根茎异常次生构造比较解剖学的研究

Studies on the Comparison Anatomy of Anomalous Secondary Structure in Rhizoma of Rheum Tanguticum Maxim. Ex Balf. R. Palmatum L. And R. Officinale Baill

本文报道三种大黄根茎内部结构,并比较了三者之间的异同。笔者初步认为大黄属植物类群在向酸模属植物类群进化的过程中,唐古特大黄可能是大黄属植物类群中进化的类型,掌叶大黄次之,药用大黄较原始。

This paper reported internal construction of 3 species of rhizoma of Rheum and compared different among three. In evolving from Rheum's genera plant community to Rumex's genera plant conmunity. It is posible that Rheum tanguticum is most advanced, R palmatum is secondly and R. officinale is raletive primitive.