When the flower buds separated and corolla facrogenous, flowers appeared and the megasporocyte formed.
当顶花花冠露出与花萼等长时, 大孢子母细胞经减数分裂形成四个直线排列的大孢子.
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The ovule is bitegminous archesporial cell locates under the nucellus epidermis, which develops into functional megasporocyte.
孢原细胞位于珠心表皮之下, 直接起大孢子母细胞的功能.
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