10. Conclusions: Ponceau 2R-brilliant green double staining technique is a quick,simple and reliable myelin stain method in demonstrating the fasciculi in the central nervous system.

• 茎横切面韧皮纤维束与筛管群、韧皮薄壁细胞相间排列,粉末中可见大量韧皮纤维束、晶纤维、分泌细胞、草酸钙方晶及簇晶。理化鉴别特征:可能含有黄酮类成分;收藏指正