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The Chinese drug gualouzi is taken from a variety of plants. In this paper, 22 kinds of gualouzi derived from 22 plants of Trichosanthes have been studied in their pharmacognostical characters and microproperties and accordingly divided into four types. Two keys are compiled based on the experimental results.
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According to textual study of herbal drugs and modern scientific research on Tianxiong, the long biennial root tuber losing reproductive capacity of Aconitum carmichaeli Debx. is regarded as the orthodox medicinal herbs through the ages.
OBJECTIVE: To learn the development characteristics of Bupleurum chinese DC. and to provide the cultivation fundament. METHOD: Plant samples of different growing periods were collected and investigated. RESULTS: It was found that the development stages of B. chinense could be divided definitely into emergence of seedings, seedling, elongation of internode, flowering and fruiting, and dormancy. During its life, cotyledon, basal leaves and stem leaves appeared and died away in turn, and the stem extended to its full length in one month. The root reached its top length during seedling stage, and its diameter increased quickly from July to August. The dry substance accumulated in aerial part of the plant increased quickly, and that in root increased by 42.4%, 94.0%, or 40.1% respectively, from mid July to mid August after stem elongation beginning, from mid September to mid October, or from mid October to the date of harvesting. CONCLUSION: Management methods and planting technologies of B. chinense should be mapped out according to the different characteristics of its three key growing stages.
OBJECTIVE: To establish HPLC-Digitized fingerprint spectrum (HPLC-DFPS) of Radix et Rhizoma Rhei from Gansu province. METHODS: HPLC method was applied. RESULTS AND CONCLUSION: A group of characteristic peaks suggested that HPLC-DFPS can be used for identification of Radix et Rhizoma Rhei from Gansu province.
OBJECTIVE: To make clear the origin of the traditional Chinese medicine, Wuguteng. METHODS: The correlation literature was consulted and arranged. RESULTS: There are a few plants using as Wuguteng, such as Fissistigma glaucescens (Hance) Merr. and Marsdenia tenacissima (Roxb.) Wight et Arn. in the records of principle literature. Wuguteng used as a drug was first recorded in "Dian Nan Ben Cao". The views of various persons in past dynasties on the efficacy of Wuguteng are unanimous. CONCLUSION: The paper has proved that Wuguteng comes from Marsdenia tenacissima of Asclepiadaceae.
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OBJECTIVE: To learn the development characteristics of Bupleurum chinense DC. for the cultivation fundament. METHOD: Mature and intact plant samples of different growing periods are studied by the method of plant growth analysis. RESULTS: The plant organs are composed of root, root crown, stalk, basal leaves, stem leaves, branches and leaves, apical and lateral inflorescences. Dry substance in the branches of the first and second level was 93.8% of that in all branches. Though the branches of third or fourth level were relatively weak, their amount was large. The root-shoot ratio with the value 0.19 was especially low. Lateral inflorescences of third or fourth level were found commonly in the population, but the first and second ones were the majors part. About 38.1% dry substance was used for the development of propagation organ. The length of main root was only 17.2 cm, its weight was nearly same as that in the lateral roots. CONCLUSION: Short cultivated history of B. chinense are still maintained some significant wild characteristics, so they don't accord with the demand of the objective gathering in the root. It may be resolved with artifical regulation and breeding.
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