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腊梅 (Chimonanthuspraecox)花两性 ,离心皮雌蕊着生在杯状花托上 ,柱头线形 ,干性。花粉经昆虫传播 ,落在柱头上 1d后萌发 ,第 8d从珠孔进入 ,第 1 4d左右完成双受精 ,为珠孔受精。胚乳为核型胚乳 ;初生胚乳核经短暂休眠进行核分裂 ,位于合点端的游离核首先形成细胞 ,并从合点向珠孔端细胞化 ,第 37d胚乳充满整个囊腔。合子经过近 2周的休眠后开始分裂 ,随着胚的发育 ,大部分胚乳降解 ,为胚的发育提供营养。合点端的胚乳细胞则侵入合点珠心组织 ,为胚进一步发育提供营养。其胚胎发生为柳叶菜型。
Labiata (Chimonanthus praecox) flowers bisexual, the pistil of the centratropium was born in the cup-shaped receptacle, stigma linear, dry. Pollen spread by insects, 1d after falling on the stigma germination, the first 8d from the beads into the hole, about the first 14d double fertilization, bead fertilization. The endosperm is nuclear endosperm. The primary endosperm nucleus undergoes a short dormancy for nuclear fission. The free nuclei located at the co-junction end first form cells, and from the confluence to the end of the peritoneal cavity, the endosperm fills the entire cyst at 37 days. After nearly two weeks of dormancy, zygotes begin to divide, and as the embryo develops, most of the endosperm degrades and provides nutrition for the development of the embryo. The end point of the endosperm cells invade the pearl-point tissue and provide nutrition for the further development of the embryo. Its embryo is willow-type.