1940 年 10 巻 4 号 p. 434-442
A case of failure of cytokinesis in the anthers of maize during premeiotic and meiotic divisions is described. The failure of cytoplasmic division has no evident effect on the course of the nuclear division. The microsporocytes in which the cytoplasm falls to divide develop into multinueleate spores. The size of these spores is roughly proportional to the number of nuclei present.