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Aerial parts of Centaurea solstitialis subs schouwii afforded the guaianolides cynaropicrin and aguerin B and the lignans arctigenin and matairesinol. The structure of a third guaianolide previously found also in Centaurea behen was revised. 相似文献
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Abdolhossein Rustaiyan Akram Niknejad Ferdinand Bohlmann Angelika Schuster 《Phytochemistry》1981,20(5):1154
8-Desacylrepin, a new guaianolide, has been isolated from Jurinea carduiformis. 相似文献
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Roots, green parts, and flower heads of Centaurea scabiosa were examined separately. Twenty-five polyacetylenes, 4 polyenic aldehydes, 1,8,11,14-heptadecatetraene, and the flavone apigenin were isolated and characterized. Three C17 hydrocarbons with from one to three isolated double bonds and a series of minor compounds were also isolated. 相似文献
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Shih Chu 《植物分类学报:英文版》1984,22(6):445-455
Since the 19th century many botanists have studied the Chinese Cirsium
and a great number of taxa or names has been reported, of which many still need to be
reviewed critically
This work is a preliminaxy result of study on Chinese species of Cirsium. As many
as 65 taxan or names in the literature are reduced to synonym in this paper. The Cirsium in China so far known comprises 49 species, of which 9 are described as new, 1 is
a new combination and 4 are new records in Chinese flora. These new species are: C.
subulariforme Shih, S. muliense Shih, C. fanjingshanense Shih, C. periacanthaceum Shih,
C. racemiforme Ling et Shih, C. vernonioides Shih, C. chrysolepis Shih, C. tenuifolium
Shih and the new combination is C. viridifolium (Hand. -Mazz.) Shih. The new records
in China are C. serratuloides (L.) Hill., C. incanum (S. G. Gmel.) Fisch. ex MB., C. lanatum (Roxb. ex Willd.) Spreng and C. alatum (S. G. Gmel) Bobr.
The Chinese Cirsium is divided into 8 sections in the present paper, of which 3 are
new, namely, Sect. Isolepis Shih, Sect. Tricholepis Shilh and Sect. Hymenolepis Shih,
and I is a new combination, namely, Sect. Spanioptilon (Cass.) Shih. In addition, a new species of the genus Alfredia, A. aspera Slih, is described. 相似文献
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Two new guaianolides have been isolated from the aerial parts of Acroptilon repens. 相似文献
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