2-Pyridinethiolate derivatives from branches and leaves of Polyalthianemoralis and their cytotoxic activities Study on chemical constituents from branches and leaves of Polyalthia nemoralis Chemical constituents from stems of Polyalthia plagioneura (I) An Addendum to the Species Polyalthia litseifolia (Annonaceae) The identity of Polyalthia pingpienensis P. T. Li(Annonaceae) A new ent-eudesmane-type sesquiterpene from leaves of Polyalthia cheliensis Plagionicin A, With C5-OH, A New Monotetrahydrofuran Acetogenin Aporphine alkaloids from branches and leaves of Polyalthia nemoralis Aporphine Alkaloids from branches and leaves of Polyalthia nemoralis Three synonyms of Annonaceae in China Comparative Anatomy on Leaves of Polyalthia (Annonaceae)