354 



as is shown in Fig. 6. Here tliere are 24 oiiromosomes in botli 

 nuclei; they can be best counted in the micropylar nneiens. The 

 fact, that the chrorao8omes after the division still lie so clearly in 



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Fig. 5 — 9. 5. Daughter nuclei of the embryosac-mother-cell of E. cochleoides, 

 on the left the chalazal nucleus, on the right the micropylar nucleus ; 

 a' — a^, c^ — c"^ etc. fragments belonging to the same chromosome. 6. Idem 

 of E. confertifolia . 7. Endosperm nucleus of E. violaceo-petiolata. 8 One 

 of the three sections through a pollen-mother-cejl of E. violaceo-petiolata. 

 9. Formation of the tetrad nuclei in a reducing-division in a pollen-mother- 

 cell of E. cochleoides. Magnification 5-6-8 -2200X1 id. 7:U50X; id 9;: 

 1100 X. 



