Triterpenoids from the Dai Medicinal Plant Winchia calophylla Loganin Derivatives from Winchia calophylla The Constituents of Eryvatamia yunnanensis INDOLE ALKALOIDS FROM STEM BARK OF MELODINUS KHASIANUS A new monoterpenoid indole alkaloid from Winchia calophylla Studies on non-alkaloid constituents from Alstonia mairei Studies on non-alkaloid constituents from Ochrosia elliptica Research of Characteristics of Leaf Epidermis for Apocynaceae A NEW INDOLE ALKALOID FROM LEAVES OF MELODDINUS HENRYI Indole Alkaloids from Roots of AIstonia mairei QUINOLINIC MELODINUS ALKALOIDS FROM STEM BARK MELODINUS KHASIANUS Components of Stem Barks of Winchia calophylla A. DC. And Their Bronchodilator Activities Chemical constituents from Chinese mangrove plant Cerbera manghas