Cytomixis with actual transfer of chromatin material has been recorded in 6 woody species, from early prophase to telophase-II. It is more common at early stages of meiosis. Number of pollen mother cells involved vary from 2–8. As a consequence of chromatin migration both hypo and hyperploid meiocytes are seen inSerissa foetida, Symplocos chinensis andQuercus semecarpifolia. However, incordia dichotoma andSalix elegans lower and inCaryopteris odorata higher numbers than the normal complement are not countable due to stickiness or agglutination of chromosomes, respectively. Reduction in pollen fertility in these species is due to the cytomixis. The phenomenon is attributed to certain unknown genetic factors.