EXPLANATION OF PLATES, 



PLATE XII. 



Figs. 1-7. Phycocelis foecundaSiKCSMV. 148 



Figs. 1-3 on Macrocystis pyrifera. i nat. size; 2 

 and 3 X 450. 



Figs. 4-7 on Desmarestia ligulata. 6 nat. size ; 

 4, 5 and 7 X 450. 

 Figs. 8-12. Phycocelis reptans (Crouan) Kjellm. 148 



Figs. 8 and 9 nat. size ; 10 x 80; 11 and 12 x 450. 



PLATE XIII. 



Strcbloneuiafascicidatiim (Thur.) LeJol. 148 



Figs. X 450. 



PLATE XIV. 



Figs. 1-5. Ectocarpus acuininatus^ sp. nov. 149 



Figs. I and 2 x 80 ; 3-5 x 450. 

 Figs. 6-9. Ectocarpus elliptic us, sp. nov. 



Fig. 6 nat. size ; 7 x 80 ; 8 and 9 x 450. 149 



PLATE XV. 



Figs. 1-4. Ectocarpus chitonicolus, ST^. nov. 150 



Fig. I X 60 ; 2-4 X 450. 

 Figs. 5-9. Ectocarpus con/ervoides pyg!fi<^us {ARESCH.)K]EhLJ.i. 154 



Fig. 5 nat. size ; 6 x 60 ; 7-9 x 450. 



PLATE XVI. 



Ectocarpus cylindricus, sp. nov. 150 



Figs. I and 6 x 80 ; the others by 450. 



PLATE XVn. 



Ectocarpus hemisphericus, sp. nov. 151 



Fig. I nat. size ; 2 x 65 , 3-8 x 450. 



PLATE XVIII. 



Figs. 1-3. Ectocarpus hemisphericus minor, form. nov. 151 



Fig. X X 65 ; 2 and 3 x 450. 

 Figs. 4-7. Ectocarpus paradoxus pacificus, var. nov. 152 



Fig. 4 nat. size ; 5 x So ; 6 and 7 x 450. 



