本研究白福木科( Guttiferae )之短柄金絲桃( Hypericum pseudope-tiolatum R. Keller )全草分離得到六種結晶性成分，經各種化學及物理方法鑑定其化學結構式分剔鳥quercetin, quercitrin,1,3,5,6-tetrahydroxyxan-thone, vanillic acid，植物固醇及其葡萄糖配醣體。本植物之主成分為quer-cetin衍生物，在金絲桃屬植物之化學分類上具有重要意義。 Six crystalline compounds were isolated from the whole plant of Hypericum pseudopetiodatum R. Keller (Guttiferae). They were identified on the basis of chemical and physicaJ methods to have the structures of quercetin, quercitrin, 1,3,5,6-tetrahydroxyxanthone, vanillic acid,phytosterols and their glucosides, respectively. It is of great significance in the chemotaxonomy of Hypericum genus that quercetin derivatives are the major components of this plant.
