DERIVED ORGANIZATION 



95 



n b 



A B 



Fig. 49. — Division of Spongomonas splendida Hart, and Ch. The old flagella are 

 discarded and new ones form from the centrioles (C and D). (o.b.) old blepharo- 

 plasts; (n.b.) new blepharoplasts. (After Hartmann and Chagas.) 







m 



B 













7§b 





^ 



tAAitefa 





•> 





~5& 





x< 



."*.'■ ■*. i; 



»■*»" „ ■•---*,"« V — 



Fig. 50. — Nuclear division and budding in Heliozoa. A, Vegetative cell of Spfuu r- 

 astrum with axial filaments focussed in a central granule (centroblepharoplast) ; 

 B, C, D, division of central granule and spindle formation in Acanthocystis aculeata; 

 E, F, formation of buds of same; G, exit of central granule from the nucleus of young 

 cells. (After Schaudinn.) 



£ 



