FIG. 181. Branch of Ceramium strict urn Grev. 

 with favellae ( x 40). (After Kutzing.) 



FIG. 1 80. Branch of Cattithamnio-i 

 seirosperinum Griff., with se : rospores 

 ( x :oo). (After Kutzing.) 



FIG. \%z,Melobesia. membranacea, Lmx. a, vertical 

 section through female conceptacle ; l>, vertical section 

 through conceptac'.e with tetraspcranges ; c, vertical 

 section through male conceptacle (x 350); d, pol- 

 linoids ( X 1300). (A' .cr Rosanoff.) 



