Two New Triterpenoid Saponins from Gymnema sylvestre Triterpenoid Saponins from Pulsatilla cernua (Thunb.) Two New Triterpenoid Saponins from Akebia quinata (Thunb.) Decne. STUDIES ON THE CHEMICAL AND PHYSICAL PROPERTY OF SAPONIN OF THEA SASANQUA AS WELL AS DEVELOPMENT UTILIZATION Two New Coumarins from Fraxinus chinensis Rexb. Accumulation and Dynamic Trends of Triterpenoid Saponin in Vegetative Organs of Achyranthus bidentata