Marquette, Manifestations of polarity in plant cells which usw. 303 



Fig. 7. Reconstructed daughter nuclei uitli polar depression, nucleoles beginning 

 to appear. The polar structures conlain abundanf starch, fche upper one 

 is as well developed as the lower l>ut inost of it lies in the next section. 



Fig. 8. Spore-mother-cell of Eqnisetum hyemule in synapsis. A dens<.' aggre- 

 gation in fche cytoplasm ly in«- against the nuclear membrane oppusitc tlu: 

 synaptic inass, the eytoplasmic hbers are centered upon this granulär 

 aggregation. 



Fig. 9. Spore-mother-cell of Marsilia quadrifolia in synapsis. Here the gran- 

 ulär aggregation (largely starch) in the cytoplasm lies against the nuclear 

 membrane next to the synaptic mass. 



