特殊用法accumbent cotyledon1.缘倚子叶conduplicate cotyledon1.对折子叶diplecolobous cotyledon1.回折子叶epigeal cotyledon1.出土子叶， 地上子叶foetal cotyledon1.胎绒毛叶incumbent cotyledon1.背倚子叶maternal cotyledon1.母体绒毛叶orthoploceous cotyledon1.纵折抱根子叶uterine cotyledon1.子宫绒毛叶