Divisions in Vicia Faba. 
855 
PLATE LXIII. 
Fig. 25. Pollen-grain in oblique section ; longitudinally split chromosomes ; remains of vacuolate 
nucleolus. 
Fig. 26. Pollen-grain in transverse section; chromosomes after disappearance of nuclear 
membrane. 
Fig. 27. Pollen-grain in longitudinal section; chromosomes passing on to spindle; split, 
not recognizable. 
Fig. 28. Pollen-grain in longitudinal section ; metaphase. 
Fig. 29. Pollen-grain in longitudinal section ; anaphase. 
Fig* 3 °* Pollen-grain in longitudinal section; late telophase; in the larger (tube) nucleus the 
chromosomes have already undergone fission. 
Fig. 31. Pollen-grain in longitudinal section; tube nucleus showing reticulum; chromosomes, 
in which fission has taken place, still recognizable in generative nucleus. 
Fig. 32. Pollen-grain in transverse section ; reticulum in ‘resting’ nucleus. 
Fig- 33- Pollen-grain in transverse section ; nucleus with spireme beginning to form. 
