石刁柏花药具四个小孢子囊，花药发育为百合型．中层最外一层细胞能保留较长时间．维持到花药成熟期，细胞发生纤维状加厚．绒毡层细胞初期单核，后变为双核或多核．小孢子形成时胞质分裂为连续型．小孢子四分体排列为四面体十字交叉型．花粉粒为二细胞型．子房上位，倒生胚珠，胚球具双层珠被，内珠被由两层细胞组成．薄珠心，单细胞孢原．大孢子四分体直列式排列，近台点端一个大孢子为功能大孢子．胚囊蓼型，二极核受精前融合．胚乳核型．发达，有具半纤维素壁的硬质胚乳．胚胎发育为：合子经休眠后即进行第一次分裂，分裂方向横向不等．形成较大的基细胞和较小的顶细胞，基细胞行横次作分裂形成胚柄，顶细胞形成胚主体． Asparagus flower medicine with four microsporangia, anther development of lily type. Middle layer of the outermost layer of cells can be retained for a long time. Maintained to anther maturation, fibrous fibrous thickened. The tapetal cells initially mononuclear and then become binuclear or multinucleated. Cytoplasm divides into contiguous form during microspore formation. Microspores tetrad arranged in tetrahedral cross type. Pollen grains are two-cell type. Ovary superior, inverted ovules, embryo with double beads, the inner beads are composed of two layers of cells. Thin Pearl Heart, single cell spore. Megaspore tetrad in-line arrangement, near the point of a megaspore large megaspores. Embryo sac Polygonum type, bipolar fusion before fertilization. Endosperm karyotype. Developed with hard endosperm with hemicellulose wall. Embryonic development is: zygote after the first division after the dormancy, the lateral direction of splitting. The formation of larger basal cells and smaller apical cells, basal cell line for the division of the embryo to form the embryonic stem, the top of the cell to form the main embryo.