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Fig 227 — C vi^iltifida transverse section of portion of hallus with a sorus of multiloculan 

 zoosporanges in different stages of development ( x 330). ^Afier Bornet.) 



Fig. 228. — Zanardinia collaris Crouan. 

 a, oogones ; ^, antherids (magnified). 

 (A^'ter Reinke.) 



Fig. 229.— Fertilisation of Z. collaris, «, swarm- 

 ing oosphere ; b, antherozoids ; c, coalescence 

 of antherozoid with passive oosphere; d, oo- 

 sperm (magnified). (After Reinke.) 



