Menispermaceae
…pairs. Stephania japonica has eleven pairs. Cissampelos pareira has twenty-two pairs. Rhigiocarya racemifera has twelve pairs. Penianthus camerounensis, Menispermum, Sinomenium, and Cocculus are tetraploid, with fifty-two pairs of chromosomes. Cocculus carolinus and Cocculus orbiculatus are hexaploid. It is thought…