REPRODUCTION 



153 



Fig. 75. The life-cycle of Pandorina morum, X400 (Pringsheim). 

 a, b, asexual reproduction; c-m, sexual reproduction. 



■^')^i- 



Fig. 76. The life-cycle of Eudorina elegans (Goebel). a, asexual repro- 

 duction; b, sexual reproduction, a female colony with clustered and iso- 

 lated microgametes. 



