Cytomixis in Lamiaceae

Abstract

Cytomixis has been observed in the pollen mother cells of Leucas aspera, two species of Mentha and two populations of Leonurus sibiricus. In Mentha piperita L. (2n=120), it has been noted to be of common occurrence as it occurs in almost all the stages of meiotic division. The probable correlation between the aneuploid gamete production, pollen sterility and the cytomictic connections in all the investigated taxa has been indicated.