CHEMICAL CONSTITUENTS FROM THE STEM BARK OF CROTON HUTCHINSONIANUS The Actions of Rhubarb and Other Chinese Drugs and Compound Prescriptions in Animal Models Materiae ad Floram Euphorbiacearum Sinensium (IV) NEW AND NOTEWORTHY SPECIES OF EUPHORBIACEAE FROM SOUTHERN CHINA Croton hirtus (Euphorbiaceae), A New Alien Species from Hainan, China NOTULAE DE EUPHORBIACEIS AUSTRO-OCCIDENTALI-SINICIS GC-MS analysis of volatile constituents from leaves of Croton euryphyllus and C. lachynocarpus Materiae ad Floram Euphorbiacearum Sinensium (III) Herbalogical Studies on the Processing of the Fruits of Croton Tiglium L. Determination of 10 microelements in Croton tiglium by ICP-AES Study on terpenoid from the roots of Croton crassifolius Chemical constituents from the root of Croton lachynocarpus Chemical constituents of Croton crassifolius