simple strobilus

• 单孢子叶球

simple strobilus的用法和样例：

例句

1. 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。