1 9 o DEVELOPMENT OF THE RED ALGAE 



tures with cylindrical axes and leaf-like branches (Fig. 125). 

 The elegant symmetry of their branching together with the deli- 



FIG. 125. Common forms of the Red Algae : A, a leaf-like form, Deles- 

 seria. B, a branching thread-like form, Ceramium. C, a branching form 

 covered with delicate hairs, Dasya. 



cacy of structure and richness of coloration has always attracted 

 attention and made them the most familiar of all the algae. 



FIG. 126. A branching filament of Callithamnion, showing the spore 

 mother cells forming tetraspores. 



They are popularly though inaccurately known as sea mosses. 

 Reproduction of the Red Algae. The reproduction of the 



