The fourtli peripheral cell mentioned "by FARLOV/ has not been 



only 

 seen, and must occur.occasionally. Of the peripheral 



cells only one has any furtjier part in the production of 



edtJ\ of 



carpo spores. Often, though not alv/ays,Athe peripheral 

 cells cuts off terminally a sins.ll sterile cell (fig. 74). 



Up to this point tiie niunher of nuclei in e.'ch of the 

 cells of the procarp varies from 4 or 5 to 10 or 12 or more* 

 there appear to be alwa.ys more than one. As the procarp 

 develops, the nuiaber of nuclei increases by mitosis, luitil 

 in the cells of the matiu:'e procarp the nuclei become quite 

 numerous. The average numbers are about as follows: basal 

 cell, 50 , central cell, 45, peripheral cells, 3-30 , 

 each sterile cell, 4 



The cytoplasm in the cells of the Jroung procarp is ho-. 

 mogenous and rather dense. A vacuole of considerable size 

 occupies the center of the basa.l cell, and of the central 

 cell. Ho chromatophores or leucoplasts have been seen in 

 the cells of the procarp, though cliromatophores are devel- 

 oped in the cells of the cystocarp. 



It sometimes happens that after the first tliree cells 

 of the procarp c._re formed the procarpic branch becomes laet- 

 ounorphosed into a vegetative shoot of tiie usual type, but 

 distinguishable from otiier vegetative shoots by the fact 



