Pollen morphology of the genus Cornukaempferia (Zingiberaceae) in Thailand A New Synonym of Kaempferia L. Studies on Introduction and Cultivation of Kaempferia galanga L. Dai medicine chemistry research, "the los" (Ⅲ) Food deceptive pollination in Kaempferia rotunda (Zingiberaceae) THE CHEMICAL C0NSTITUENTS OF THE ESSENTIAL OIL OF KAEMPFERIA GALANGA Pyrgophyllum, a New Genus of Zingiberaceae from China Technologic optimization of Kaempferia galanga by supercritical CO_2 extraction