Morphological structure of vegetative organs and histochemical localization in Chloranthus japonicus Sieb.

Anatomical and histochemical methods were used to investigate the structure of vegetative organs,and terpenoids and flavonoids location in Chloranthus japonicus Sieb.The root cortex cells were arranged in order and had smaller intercellular spaces,and the root phloem was narrow.The stem cortex cells were also arranged in order,and the stem phloem was surrounded by strands of fiber.The leaves had the bifacial structure.The palisade tissue and sponge tissue were clearly differentiated.There were no hairs on the upper and lower epidermis of the leaf.The stomatal apparatuses fell into anomocytic type and occured only on the lower epidermis.The histochemistry results of terpenoids and flavonoids localization were similar in vegetative organs in C.japonicus,both of which were mainly distributed in the cortex of root,the cortex of stem and phloem cell.