Abstract
Mitotic abnormalities at anaphase and telophase were observed in the root meristem and also in the ovular tissue of young fruits of Clivia miniata Regel, grown in the greenhouse. From the data collected during a period from July 1965 to July 1968, the following conclusion is drawn: (1) There is a seasonal variation in their occurrence of aberrant cells. The chromosome stickiness becomes increasingly pronounced in correlation with high temperature. (2) The type of aberrations appears to vary according to different tissues.