Effectiveness of ants in dispersal of seed of Codariocalyx motorius and preventing the seed from rodents‘ predation Codariocalyx motorius seed removed by ants in Xishuangbanna THE STUDY OF EFFECT OF ANTS ON CODARIOCALYX MOTORIUS SEEDS IN THE TROPIC AND SUB-TROPIC MOUNTAINOUS LANDS, YUNNAN PROVINCE OF CHINA Tissue Culture and Rapid Propagation of Rare Plant in Codariocalyx motorius(Houtt.) Detection of Higher Vigour of Hard Seed of Codariocalyx motorius