No. 449.] STUDIES ON THE PLANT CELL. 



2. Non-Protoplasmic Contents. 



(a) Food material and waste products. 



(b) Vacuoles. 



3. The Cell Wall. 



Section II. The Activities of the Plant Cell. 



1. Vegetative Activities. 



2. Cell Division. 



(a) The Events of Nuclear Division. 



1. Direct Division. 



2. Indirect Division (Mitosis). 



Prophase, Metaphase, Anaphase, i'cloph: 



3. The Dynamics of Nuclear Division. 



(b) The Segmentation of Protoplasm. 



1. Cleavage by Constriction. 



2. Cleavage by Cell Plates. 



3. Free Cell Formation. 



Section III. Hiohly Specialized Plant Cells 

 Peculiarities. 



I. The Zoospore. 2. The Sperm. 3- Hic K-k 



Spore Mother Cell. 5- The Coenocytc. 6. 

 - gamete. 



Section IV. Cell Unions and Xlc lkak I l.-k.n 



Section V. Cell Activities at Cki ik m. I'kkm'I 

 ENv IN Plants. 



I. Gametogenesis. 2. Sp<>n),:^^ciicsi>. 3. ^ 

 Chromosomes. 4. Apoganiy. 5. Ai)M>[)(-r\ 



Section VI. Comparative Moki'Iioi.ih.v ani> 1*ii 

 THE Plant Cell. 



