PLATE XXV. 



[Proc. Wash. Acad. Sci., Vol. Ill, PI. LVIIL] 



FIG. I. Nereocystts friapus (Gmel.) Saunders ; much reduced. 



2> " " " section of blade showing fruit. 



, u " " longitudinal section showing mucous canals 



(X40)- 



4. Nereocystis priapus (Gmel.) Saunders (X4)- 

 c. ' ' " cross section of stipe showing mucous 



canals and secreting cells. 

 [478] ^ 



