Longan(Dimocarpus longana Lour.)and litchi(Litchi chinensis Sonn.)are famous and special fruits in tropical and subtropical zones.Longan and litchi originate in China,which have been cultivated for more than 2000 years and both hold abundant germplasm resources.There have been many scientific researches on longan and litchi.However,few systematic studies were conducted on comparison of leaf epidermis and pollen grains between longan and litchi.Therefore,the aim of this study is to compare the differences of...