Studies on chemical constituents in leaves of Mallotus furetianus Studics on Chcmical Constltuents of Pogostemon cablin (Blanco)Benth Studies on the Constituents of Desmodium triquetrum (L.)DC Studies on Chemical Constituents of Conyza blinii Lévl. Studies on Chemical Constituents of Pericampylus glaucus (Lam.) Merr.