Studies on the Alkaloids of Cephalotaxus Isolation of 7-deoxycephalofortuneine, a New Homoerythrina Alkaloid from Cephalotaxus fortuneine Hook. f Genetic Diversity for Different Provenances of Cephalotaxus fortunei Investigation on Fertilization of Cephalotaxus A STUDY ON CHEMICAL CONSTITUENTS OF ESSENTIAL OIL FROM CEPHALOTAXUS FORTUNEI LEAVES Provenance Differences for Seedling Morphology and Growth of Cephalotaxus fortunei Effects of twig powder of Cephalotaxus fortunei on control of peanut root-knot disease caused by Meloidogyne arenaria Interspec ies Connection of Dom inant Tree Spec ies inCepha lotaxus fortune i Commun ities A STUDY ON THE CEPHALOTAXUS FORTUNEI FOREST OF XIAOLIAN MANTAIN IN NINGLANG COUNTY, YUNNAN