In vitro Antibacterial Activities Extracts from Four Plants Used as Traditional Chinese Medicine Guanzhong Studies on the Allelopathy of the Maceration Extracts of Woodwardi japonica and Hicriopteris glauca A PRELIMINARY STUDY ON BIOMASS OF WOODWARDIA JAPONICA COMMUNITY UNDER A CONIFEROUS PLANTATION IN SUBTROPICAL CHINA Studies on the Chemical Constituents of Woodwardia japonica Pharmacognostical Studies on the Chinese Drug Guanzhong Produced in Middle-South China Pharmacognostical Studies on the Chinese Drug Guanzhong Produced in East China Ultrastructure of the sporoderm development in Woodwardia japonica