This study is to investigate the possibility and range of seed preservation of ornamental plants by cryopreservation. Experiments of 47 species flowers representing 18 families were carried out. Except two species of them, all the others were stored by cryopreservation successfully. The seeds of those two species have burst when they were put into liquid nitrogen(LN 2). The 45 species flowers still kept the certain germination rates after cryopreservtion and some of them even had higher germination rates t...