Zhongguo Zhongyao Zazhi 1998-Feb
[Chemical studies on Pyrrosia gralla (Gies.) Ching].
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From Pyrrosia gralla four compounds were isolated and identified stigmasterol(I), ursolic acid (II), mangiferin(III) and sucrose(IV) by physical and chemical means. Compounds I and II were obtained from Pyrrosia for the first time.