Onion Mitosis Slide, l.s., 10 um, Hematoxylin Teachers Choice! Our most popular plant mitosis slide. * Every stage clearly visible * Easy to grasp * Hands-on: seeing is believing Theres nothing like seeing the steps of cell mitosis to make an impression on students. Stained with hematoxylin and selected to show all stages of mitosis, this onion root tip slide makes the process clearly visible. No wonder its a best seller!