Most gymnosperms retain archegonia except for the most advanced genera gnetum and welwitschia 除了买麻藤属和百岁兰属以外大多数裸子植物还保留有颈卵器。
2.
Zhu and her colleagues also won a second grade prize of " the chemical and pharmacological studies of genes gnetum " from the beijing municipal government 八十年代，他作为"水飞蓟宾注射剂研制"主要负责人之一，完成药效毒性实验工作。
