[Distribution and influencing factors of magnoflorine in Epimedium].

Eighty samples of Epimedium from 29 species and were determined in this study. The content of magnoflorine in leaves range between 0. 003% and 2. 603%. The results showed that the content of magnoflorine was quite stable within species except E. wushanense, E. acuminatum, E. hunanense. Genetic factors might be the main influencing ones. The contents of different parts and different collecting time of the medicinal materials were variable.