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The flower structure in one tree was different, enforcing cleistogamy.同一株樹上的花結(jié)構(gòu)不同, 因而閉花受精是強制實現(xiàn)的.This trait is called cleistogamy and occurs naturally in some plants.這種特性稱為閉花受精;一些植物會自然發(fā)生閉花受精....

cleistogamy的音標：cleistogamy的英式發(fā)音音標為：[kla?s't?g?m?]cleistogamy的美式發(fā)音音標為：[kla?s't?g?m?]...

n.閉花受精，閉花受粉...