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无核荔枝是荔枝中较为珍贵的品种，有丰富的假种皮，种子多退化，属焦核品系。在胚胎发育过程中，小孢子四分体形成后，虽然出现有些小孢子形状不规则，原生质少或无等现象，但也有发育正常的花粉粒。而大孢子在各个发育阶段均会出现各种败育现象，因此无法形成胚，这是产生焦核的主要原因。淀粉粒的积累和分布对胚囊和雄配子体的发育起着重要作用，其分布具有一个动态的变化途径，这与挂绿荔枝有相同之处。
Seedless lychee is more precious varieties of litchi, rich in aril, seed degeneration, is coke nuclear strains. During embryonic development, microspore tetrad formation, although some microspores irregular shape, protoplasm less or no phenomenon, but also the normal development of pollen grains. The megaspore in all developmental stages will appear all kinds of abortion, it can not form embryos, which is the main reason for the generation of coke nucleus. The accumulation and distribution of starch granules play an important role in the development of embryo sac and male gametophyte, and its distribution has a dynamic way of change, which is similar to hanging green litchi.