大孢子叶 meaning in English

macro orophyll
macrosporophll
macrosporophyll
megasporophyll

Review on the megastrobilus theories of conifers
松杉类裸子植物的大孢子叶球理论评述
It has evolved by fusion of the two edges of the megasporophyll
心皮是由大孢子叶两边愈合进化而来的。
The carpel is homologous with the megasporophylls of certain spore - bearing vascular plants ( pteridophytes ) and the ovuliferous scales of gymnosperms
心皮和能产生孢子的维管植物（羊齿类）还有具胚珠的裸子植物的大孢子叶是同源的。
In the clubmosses and horsetails only one type of strobilus is formed , while in the gymnosperms female megastrobili and male microstrobili both develop
石松和楔叶类只形成一种类型的球果，然而裸子植物既有雌性的大孢子叶球也有雄性的小孢子叶球。