四面体

The tetrasporophyte wrapped by callose is of simultaneous type.

四分体呈四面体型，被胼胝质壁所包围。

Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged.

花粉母细胞分裂，细胞质分裂属同时型，生子四分体，为四面体。

Ubisch bodies and lipid bodies are found in the glandular tapetums. In meiosis of microsporocyte, cytokinesisis is a simultaneous type, which produces an isobilateral tetrad.

子母细胞分裂胞质分裂为同时型,生正四面体型四分体。