Forsythia saxatilis, a Korean native Forsythia, is recognized as an endangered species in the Korean Red List. We carried out a comprehensive embryological investigation, including a study of the pericarp development, of F. saxatilis and compared it with previously acquired information on the family Oleaceae and also with Abeliophyllum distichum, a close relative of Forsythia. Our results revealed that several embryological features of Forsythia are exclusively comparable with the family Oleaceae, particularly in relation to A. distichum. Despite the differences in fruit types and pericarp ontogeny, Forsythia shares some unique embryological features with Abeliophyllum, for instance the basic type of anther wall development, formation of the nucellar cap, a long micropyle, formation of the obturator and hypostase, and the crushed endotesta. Furthermore, the loculicidal capsule of Forsythia seems to be primitive within the tribe Forsythieae and samara of Abeliophyllum might be evolved from it. In conclusion, a considerable number of synapomorphies of embryological characters supports recent molecular reports and provide additional embryological evidence for the sister-group relationship of Forsythia and Abeliophyllum.

连翘（Forsythia saxatilis）是韩国本地的连翘（Forsythia），在韩国红色名录中被认为是濒危物种。我们进行了全面的胚胎调查，包括果皮发展的研究中，F.黑眉，并与家庭木犀科先前获得的信息也较其Abeliophyllum落羽杉，近亲连翘。我们的研究结果表明，连翘的几个胚胎学特征仅与豆科（Oleaceae）相当，特别是与曲霉（A. distichum）有关。尽管水果类型和果皮个体发育存在差异，连翘与天竺葵具有一些独特的胚胎学特征，例如花药壁发育的基本类型，细胞核帽的形成，长的髓核，闭孔和低渗的形成以及压碎的内胚层。此外，连翘的杀虫囊似乎是连翘属中的原始物种，并且可能会从中进化出莎草。综上所述，相当数量的胚胎学同型同形支持最近的分子报道，并为连翘和白粉虱的姐妹群关系提供了更多的胚胎学证据。