Abstract: This article is a part of embryological studies of Basella rubra L. dealing with the microsporogenesis and megasporogenesis, and the deyelopment of male and female gametophytes. The results of observation are sumlnarized as follows: The formation of microspore was of simultaneous type and the microspore tetrads were arranged tetrahedrally. In the meiosis of PMCs, the changes in fornlation and disappearance of callose wall may be c1early seen. Pollen grain was 3-celled when shed, and formed six colpi (pancolpate) and reticulate sculpture on the pollen surface. The characters of glandular tapetum were appeared.

Key words: Basella rubra

摘要： 落葵（Basella rubra L.)小B孢子的发育为同时型,四分体呈四面体排列。在花粉母细胞减数分裂过程中，可清楚地看到胼胝壁的消长变化。三胞花粉，具散沟和网状纹饰。腺质绒毡层。胚囊的发育为蓼型。反足细胞退化.内珠被突出形成珠被喙，同时，在其珠孔区域,有由内珠被的内表皮细胞所发育而来的类似盖状结构。本文还注意到同一花中以及相邻花朵之间，花粉粒与胚囊发育进程的相关。花粉粒的发育略早于胚囊的发育，但以后由于胚囊母细胞形成胚囊的进程较为迅速，以致花粉粒与胚囊能够同时成熟。

关键词: 落葵, 花粉粒, 胚囊