FIG. 227. C. multijida; transverse section of portion of thallus with a sorus of multiloculai 

 zoosporanges in different stages of development (x 330). ('Alter Bornet.) 



FIG. 229. Fertilisation of Z. cpllaris. a, swarm- 

 ing oosphere ; b, antherozoids ; c, coalescence 

 of antherozoid with passive oosphere ; d, oo- 

 sperm (magnified). (After Reinke.) 



FIG. 228. Zaitardinia. collciris Crouan. 

 , oogones ; b, antherids (magnified). 

 (A r ter Reinke.) 



