CLXIIT. ALG/E. 



r97 





930. CEdogonium crispum, Wittr. (With oogonia.) 

 g$2. Cladophora glomerata, Kuetz. 



(a) Plant nat. size, (b) tip of a branch with zoogonidia x 200, (c) zoogonidia x 320. 



933. Halicoryne Wrightii, Haw. 



934. Caulerpa cupressotpes, Ag. 



935. Udotea argentea, Zanard. 



