52 Farmer.- — On Pallavicinia decipiens , Mitten. 
Fig. 30. Spore-mother-cell with four-lobed chromatic mass. 
Fig. 31. Nucleus from young sporogonium preparing for division. 
Figs. 32, 33. Different views of dividing nuclei from young sporogonium. 
Fig. 34. Dividing nucleus in diaster-stage, from the same tissue. Only the 
ends of the looped chromosomes are shown. 
Fig. 35. Dividing nucleus in colesula. 
Figs. 36, 37, 37 a. Dividing nuclei of cells at the base of the calyptra. 
Fig. 38. Spore-mother-cell of Aneura multifida , with quadripolar spindle. 
Fig. 39. Karyokinesis in spore-mother-cell of the same. 
