Small amounts of geographic variation have been demonstrated in several other traits, such as cortical concentration of certain monoterpene. 在其他几个性状上，亦经证明有少量地理变异，诸如皮部的某些单萜烯浓度。
CONCLUSION Alcohol sedimentation is a better method in extracting monoterpene glycoside. 结论水提醇沉法提取山茱萸单萜甙较好。
