Study on chemical constituents from Ixora chinensis Studies on the Active Antisenile Constituents in Cistanche deserticola Y. C. Ma Studies on the Chemical Constituentε of Acanthopanax giraldii Harms Studies on the Chemical Constituents of Pedicularis muscicola Maxim. Study on chemical constituents from Ixora chinensis Studies on the Active Constituents of Commelina communis L.