Survey on the botanical resources in Sichuan province has been conducted. It is concluded that 22 species in 5 sections of Hypericum are for medicinal use.
调查研究了川产金丝桃属药用植物的资源概况，总结出川产5组22种金丝桃属药用植物的品种、分布及药用情况。
Conclusion: the secretory structures may be as anatomical evidences for the morphological and histological identification of 20 medicinal species in Hypericum.
结论：该属的内部分泌结构和解剖特征可以作为这20种药用植物的显微鉴别指标。
Method: Morphological and anatomical study on the organs of 20 medicinal species in Hypericum using tissue clearing, paraffin sectioning and thin sectioning.
方法：用整体透明法、石蜡制片法和半薄切片法对20种药用金丝桃属植物不同器官进行形态解剖学研究。
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