ZOOSPORANGIA 



Fig. 105. — Aglaozonia reptans. A, Section of thallus showing zoosporangia. 

 B, Enlarged zoosporangia containing zoospores. C, Zoospore. {From Oltmanns.) 



^=IZS=5ZIJ2 



Fig. 106. — Cutleria nndtijida. A, Young stages in the development of the Cutleria thallus 

 from the zoospore of Aglaozonia. B, Shows the formation of a funnel-shaped structure 

 from the margins of which the branches develop. {After Yamanouclii.) 



123 



