FIG. 30. SUCCESSIVE STAGES OF MITOSIS IN THE ROOT TIP OF THE DOGTOOTH VIOLET 



(ERYTHRONIUM AMERICANUM). 



a, resting nucleus; 6, close spireme; c, loose spireme; d, segmented spireme; e, late 

 prophase;/and g, metaphase; h and i, anaphase;jW, telophase (showing mid-body or 

 cell plate) ; m and n, daughter cells, n, with resting nuclei. X 1500. 



23 



