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16 results on '"Wang, Fa‐Song"'

15. Tirucallane-Type Triterpenoids from Celastrus stylosus Wall.

Author

Shan, Wei-Guang, Gao, Zai-Lin, Ying, You-Min, Xiang, Jia-Gui, Wang, Fa-Song, and Zhan, Zha-Jun

Abstract

Two new tirucallane-type triterpenoids, (24 Z)-tirucalla-7,24-diene-3 β,11 β,26-triol ( 1) and (3 S,24 R)-tirucall-7-ene-3,24,25-triol ( 2), along with the known compound celastrol ( 3), were isolated from the root barks of Celastrus stylosus Wall. The structures of 1- 3 were established by spectroscopic methods, including extensive 2D NMR and MS analyses. It is the first report on tirucallane-type triterpenoids from the genus Celastrus and may be of vital chemotaxonomic significance. [ABSTRACT FROM AUTHOR]

Published
2014
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16. A new record of Cleisostoma (Orchidaceae) from China.

Author

WANG Fa-Song, WEN Tie-Long, NIU Miao, and LI Lin

Subjects
*CLEISOSTOMA, *PLANT species, *LEAVES, *PLANT classification, *FLORAL morphology
Abstract

Cleisostorna Bl. is an orchid genus with approximately 100 accepted species widely distributed in tropical and subtropical areas. There are about 16 species in China (4 endemic) before. Cleisostoina aspersuin (Rchb. f.) Garay, so far known only from Yunnan, is reported from China. A detailed description and photos are provided. This species is easily distinguished from its relatives by bilobulate leaves, fat and obtuse midlobe of the lip, conical rostellum with an oblique apex, and beaked operculum. It is similar to Cleisostoma discolor Lindl. in floral morphology, but the latter differs by having a lip with thin spathulate truncate midlobe, with erose front edge. [ABSTRACT FROM AUTHOR]

Published
2015
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