118 



SEAWEEDS 



Eetocarpus secundus and E. Lcbelii, besides ordin- 

 ary plurilocular sporangia, has already been men- 

 tioned, and their full significance can be little 

 more than guessed until much more is known of 



FIG. 29. Ectocarpus coufervoide*. Filament with unilocular sporangia, and 

 one plurilocular sporangium. Highly magnified. 



the reproductive processes in PhceopTiyccce. Mean- 

 time, observation of the possible relation of their 

 antherozoids, which fully resemble those of Fucacecc, 

 Cutleriaccce and Tilopteridacccc, with the gametes of 

 the plurilocular sporangia, may help the matter. 



